Merge pull request #424 from unidoc-build/prep-rc-v3.14.0-take4

Prepare release of UniPDF v3.14.0

common/common.go

@@ -10,93 +10,96 @@
 // terms that can be accessed at https://unidoc.io/eula/
 
 // Package common contains common properties used by the subpackages.
-package common ;import (_f "fmt";_e "io";_dd "os";_a "path/filepath";_fb "runtime";_b "time";);
+package common ;import (_b "fmt";_fg "io";_bb "os";_f "path/filepath";_g "runtime";_a "time";);func (_ea WriterLogger )logToWriter (_ge _fg .Writer ,_bbd string ,_ag string ,_gf ...interface{}){_cf (_ge ,_bbd ,_ag ,_gf );};
 
-// DummyLogger does nothing.
-type DummyLogger struct{};
-
-// Info does nothing for dummy logger.
-func (DummyLogger )Info (format string ,args ...interface{}){};
-
-// Trace logs trace message.
-func (_dbf ConsoleLogger )Trace (format string ,args ...interface{}){if _dbf .LogLevel >=LogLevelTrace {_ab :="\u005b\u0054\u0052\u0041\u0043\u0045\u005d\u0020";_dbf .output (_dd .Stdout ,_ab ,format ,args ...);};};
-
-// Info logs info message.
-func (_gdb WriterLogger )Info (format string ,args ...interface{}){if _gdb .LogLevel >=LogLevelInfo {_ddd :="\u005bI\u004e\u0046\u004f\u005d\u0020";_gdb .logToWriter (_gdb .Output ,_ddd ,format ,args ...);};};const Version ="\u0033\u002e\u0031\u0033\u002e\u0030";var Log Logger =DummyLogger {};
-
-// Debug does nothing for dummy logger.
-func (DummyLogger )Debug (format string ,args ...interface{}){};func (_fe WriterLogger )logToWriter (_abf _e .Writer ,_feb string ,_gcf string ,_dbb ...interface{}){_eeb (_abf ,_feb ,_gcf ,_dbb );};func (_ba ConsoleLogger )output (_gg _e .Writer ,_baa string ,_fbb string ,_gc ...interface{}){_eeb (_gg ,_baa ,_fbb ,_gc ...);};var ReleasedAt =_b .Date (_cbd ,_geb ,_ac ,_bag ,_fbf ,0,0,_b .UTC );
-
-// NewConsoleLogger creates new console logger.
-func NewConsoleLogger (logLevel LogLevel )*ConsoleLogger {return &ConsoleLogger {LogLevel :logLevel }};const _gff ="\u0032\u0020\u004aan\u0075\u0061\u0072\u0079\u0020\u0032\u0030\u0030\u0036\u0020\u0061\u0074\u0020\u0031\u0035\u003a\u0030\u0034";
-
-// NewWriterLogger creates new 'writer' logger.
-func NewWriterLogger (logLevel LogLevel ,writer _e .Writer )*WriterLogger {_ead :=WriterLogger {Output :writer ,LogLevel :logLevel };return &_ead ;};
-
-// ConsoleLogger is a logger that writes logs to the 'os.Stdout'
-type ConsoleLogger struct{LogLevel LogLevel ;};const (LogLevelTrace LogLevel =5;LogLevelDebug LogLevel =4;LogLevelInfo LogLevel =3;LogLevelNotice LogLevel =2;LogLevelWarning LogLevel =1;LogLevelError LogLevel =0;);
+// IsLogLevel returns true if log level is greater or equal than `level`.
+// Can be used to avoid resource intensive calls to loggers.
+func (_aea ConsoleLogger )IsLogLevel (level LogLevel )bool {return _aea .LogLevel >=level };
 
 // Warning does nothing for dummy logger.
 func (DummyLogger )Warning (format string ,args ...interface{}){};
 
-// IsLogLevel returns true if log level is greater or equal than `level`.
-// Can be used to avoid resource intensive calls to loggers.
-func (_cg ConsoleLogger )IsLogLevel (level LogLevel )bool {return _cg .LogLevel >=level };
+// Warning logs warning message.
+func (_ceb ConsoleLogger )Warning (format string ,args ...interface{}){if _ceb .LogLevel >=LogLevelWarning {_gba :="\u005b\u0057\u0041\u0052\u004e\u0049\u004e\u0047\u005d\u0020";_ceb .output (_bb .Stdout ,_gba ,format ,args ...);};};
+
+// Debug logs debug message.
+func (_aa ConsoleLogger )Debug (format string ,args ...interface{}){if _aa .LogLevel >=LogLevelDebug {_db :="\u005b\u0044\u0045\u0042\u0055\u0047\u005d\u0020";_aa .output (_bb .Stdout ,_db ,format ,args ...);};};
+
+// NewConsoleLogger creates new console logger.
+func NewConsoleLogger (logLevel LogLevel )*ConsoleLogger {return &ConsoleLogger {LogLevel :logLevel }};
 
 // Error does nothing for dummy logger.
 func (DummyLogger )Error (format string ,args ...interface{}){};
 
-// IsLogLevel returns true from dummy logger.
-func (DummyLogger )IsLogLevel (level LogLevel )bool {return true };const _bag =10;
-
-// Debug logs debug message.
-func (_cec WriterLogger )Debug (format string ,args ...interface{}){if _cec .LogLevel >=LogLevelDebug {_bfb :="\u005b\u0044\u0045\u0042\u0055\u0047\u005d\u0020";_cec .logToWriter (_cec .Output ,_bfb ,format ,args ...);};};
-
-// Warning logs warning message.
-func (_fa WriterLogger )Warning (format string ,args ...interface{}){if _fa .LogLevel >=LogLevelWarning {_ece :="\u005b\u0057\u0041\u0052\u004e\u0049\u004e\u0047\u005d\u0020";_fa .logToWriter (_fa .Output ,_ece ,format ,args ...);};};const _geb =10;
-
-// SetLogger sets 'logger' to be used by the unidoc unipdf library.
-func SetLogger (logger Logger ){Log =logger };
-
 // Error logs error message.
-func (_ce WriterLogger )Error (format string ,args ...interface{}){if _ce .LogLevel >=LogLevelError {_bd :="\u005b\u0045\u0052\u0052\u004f\u0052\u005d\u0020";_ce .logToWriter (_ce .Output ,_bd ,format ,args ...);};};const _ac =19;
+func (_dbe WriterLogger )Error (format string ,args ...interface{}){if _dbe .LogLevel >=LogLevelError {_ba :="\u005b\u0045\u0052\u0052\u004f\u0052\u005d\u0020";_dbe .logToWriter (_dbe .Output ,_ba ,format ,args ...);};};func (_dg ConsoleLogger )output (_fgb _fg .Writer ,_de string ,_dee string ,_cde ...interface{}){_cf (_fgb ,_de ,_dee ,_cde ...);};const _eb =11;const Version ="\u0033\u002e\u0031\u0034\u002e\u0030";
 
-// Error logs error message.
-func (_gde ConsoleLogger )Error (format string ,args ...interface{}){if _gde .LogLevel >=LogLevelError {_bf :="\u005b\u0045\u0052\u0052\u004f\u0052\u005d\u0020";_gde .output (_dd .Stdout ,_bf ,format ,args ...);};};
+// DummyLogger does nothing.
+type DummyLogger struct{};
 
-// Notice does nothing for dummy logger.
-func (DummyLogger )Notice (format string ,args ...interface{}){};
+// Logger is the interface used for logging in the unipdf package.
+type Logger interface{Error (_fe string ,_fga ...interface{});Warning (_e string ,_ce ...interface{});Notice (_cc string ,_d ...interface{});Info (_bf string ,_gb ...interface{});Debug (_ae string ,_da ...interface{});Trace (_fc string ,_ad ...interface{});IsLogLevel (_bbb LogLevel )bool ;};
 
-// Warning logs warning message.
-func (_gf ConsoleLogger )Warning (format string ,args ...interface{}){if _gf .LogLevel >=LogLevelWarning {_ec :="\u005b\u0057\u0041\u0052\u004e\u0049\u004e\u0047\u005d\u0020";_gf .output (_dd .Stdout ,_ec ,format ,args ...);};};
+// Info does nothing for dummy logger.
+func (DummyLogger )Info (format string ,args ...interface{}){};
 
-// Debug logs debug message.
-func (_efb ConsoleLogger )Debug (format string ,args ...interface{}){if _efb .LogLevel >=LogLevelDebug {_ee :="\u005b\u0044\u0045\u0042\u0055\u0047\u005d\u0020";_efb .output (_dd .Stdout ,_ee ,format ,args ...);};};func UtcTimeFormat (t _b .Time )string {return t .Format (_gff )+"\u0020\u0055\u0054\u0043"};func _eeb (_cb _e .Writer ,_cdc string ,_ff string ,_bfg ...interface{}){_ ,_fba ,_gce ,_gda :=_fb .Caller (3);if !_gda {_fba ="\u003f\u003f\u003f";_gce =0;}else {_fba =_a .Base (_fba );};_bdg :=_f .Sprintf ("\u0025s\u0020\u0025\u0073\u003a\u0025\u0064 ",_cdc ,_fba ,_gce )+_ff +"\u000a";_f .Fprintf (_cb ,_bdg ,_bfg ...);};
+// UtcTimeFormat returns a formatted string describing a UTC timestamp.
+func UtcTimeFormat (t _a .Time )string {return t .Format (_ee )+"\u0020\u0055\u0054\u0043"};
 
 // Trace logs trace message.
-func (_ebf WriterLogger )Trace (format string ,args ...interface{}){if _ebf .LogLevel >=LogLevelTrace {_aee :="\u005b\u0054\u0052\u0041\u0043\u0045\u005d\u0020";_ebf .logToWriter (_ebf .Output ,_aee ,format ,args ...);};};
+func (_bg ConsoleLogger )Trace (format string ,args ...interface{}){if _bg .LogLevel >=LogLevelTrace {_fb :="\u005b\u0054\u0052\u0041\u0043\u0045\u005d\u0020";_bg .output (_bb .Stdout ,_fb ,format ,args ...);};};
 
-// Info logs info message.
-func (_ef ConsoleLogger )Info (format string ,args ...interface{}){if _ef .LogLevel >=LogLevelInfo {_cdg :="\u005bI\u004e\u0046\u004f\u005d\u0020";_ef .output (_dd .Stdout ,_cdg ,format ,args ...);};};const _cbd =2020;
-
-// Notice logs notice message.
-func (_db ConsoleLogger )Notice (format string ,args ...interface{}){if _db .LogLevel >=LogLevelNotice {_ge :="\u005bN\u004f\u0054\u0049\u0043\u0045\u005d ";_db .output (_dd .Stdout ,_ge ,format ,args ...);};};
+// Debug does nothing for dummy logger.
+func (DummyLogger )Debug (format string ,args ...interface{}){};const _ebd =15;
 
 // WriterLogger is the logger that writes data to the Output writer
-type WriterLogger struct{LogLevel LogLevel ;Output _e .Writer ;};const _fbf =15;
+type WriterLogger struct{LogLevel LogLevel ;Output _fg .Writer ;};var Log Logger =DummyLogger {};
 
-// IsLogLevel returns true if log level is greater or equal than `level`.
-// Can be used to avoid resource intensive calls to loggers.
-func (_bc WriterLogger )IsLogLevel (level LogLevel )bool {return _bc .LogLevel >=level };
+// Info logs info message.
+func (_ed WriterLogger )Info (format string ,args ...interface{}){if _ed .LogLevel >=LogLevelInfo {_dae :="\u005bI\u004e\u0046\u004f\u005d\u0020";_ed .logToWriter (_ed .Output ,_dae ,format ,args ...);};};
+
+// Error logs error message.
+func (_bd ConsoleLogger )Error (format string ,args ...interface{}){if _bd .LogLevel >=LogLevelError {_cd :="\u005b\u0045\u0052\u0052\u004f\u0052\u005d\u0020";_bd .output (_bb .Stdout ,_cd ,format ,args ...);};};
+
+// Notice logs notice message.
+func (_ada ConsoleLogger )Notice (format string ,args ...interface{}){if _ada .LogLevel >=LogLevelNotice {_bfe :="\u005bN\u004f\u0054\u0049\u0043\u0045\u005d ";_ada .output (_bb .Stdout ,_bfe ,format ,args ...);};};
+
+// Debug logs debug message.
+func (_dd WriterLogger )Debug (format string ,args ...interface{}){if _dd .LogLevel >=LogLevelDebug {_fgg :="\u005b\u0044\u0045\u0042\u0055\u0047\u005d\u0020";_dd .logToWriter (_dd .Output ,_fgg ,format ,args ...);};};const _ee ="\u0032\u0020\u004aan\u0075\u0061\u0072\u0079\u0020\u0032\u0030\u0030\u0036\u0020\u0061\u0074\u0020\u0031\u0035\u003a\u0030\u0034";
 
 // Trace does nothing for dummy logger.
-func (DummyLogger )Trace (format string ,args ...interface{}){};
+func (DummyLogger )Trace (format string ,args ...interface{}){};const (LogLevelTrace LogLevel =5;LogLevelDebug LogLevel =4;LogLevelInfo LogLevel =3;LogLevelNotice LogLevel =2;LogLevelWarning LogLevel =1;LogLevelError LogLevel =0;);
+
+// Trace logs trace message.
+func (_cg WriterLogger )Trace (format string ,args ...interface{}){if _cg .LogLevel >=LogLevelTrace {_ceg :="\u005b\u0054\u0052\u0041\u0043\u0045\u005d\u0020";_cg .logToWriter (_cg .Output ,_ceg ,format ,args ...);};};const _cb =18;
+
+// Notice does nothing for dummy logger.
+func (DummyLogger )Notice (format string ,args ...interface{}){};func _cf (_ef _fg .Writer ,_aee string ,_fee string ,_fcb ...interface{}){_ ,_gbae ,_ca ,_fd :=_g .Caller (3);if !_fd {_gbae ="\u003f\u003f\u003f";_ca =0;}else {_gbae =_f .Base (_gbae );};_ccc :=_b .Sprintf ("\u0025s\u0020\u0025\u0073\u003a\u0025\u0064 ",_aee ,_gbae ,_ca )+_fee +"\u000a";_b .Fprintf (_ef ,_ccc ,_fcb ...);};
+
+// Warning logs warning message.
+func (_cdc WriterLogger )Warning (format string ,args ...interface{}){if _cdc .LogLevel >=LogLevelWarning {_ceba :="\u005b\u0057\u0041\u0052\u004e\u0049\u004e\u0047\u005d\u0020";_cdc .logToWriter (_cdc .Output ,_ceba ,format ,args ...);};};
 
 // LogLevel is the verbosity level for logging.
 type LogLevel int ;
 
-// Logger is the interface used for logging in the unipdf package.
-type Logger interface{Error (_aa string ,_df ...interface{});Warning (_eb string ,_g ...interface{});Notice (_ae string ,_c ...interface{});Info (_gd string ,_ad ...interface{});Debug (_ea string ,_cc ...interface{});Trace (_gb string ,_cd ...interface{});IsLogLevel (_bb LogLevel )bool ;};
+// NewWriterLogger creates new 'writer' logger.
+func NewWriterLogger (logLevel LogLevel ,writer _fg .Writer )*WriterLogger {_bdd :=WriterLogger {Output :writer ,LogLevel :logLevel };return &_bdd ;};const _ab =2020;
+
+// ConsoleLogger is a logger that writes logs to the 'os.Stdout'
+type ConsoleLogger struct{LogLevel LogLevel ;};
+
+// IsLogLevel returns true if log level is greater or equal than `level`.
+// Can be used to avoid resource intensive calls to loggers.
+func (_ec WriterLogger )IsLogLevel (level LogLevel )bool {return _ec .LogLevel >=level };const _ddb =11;var ReleasedAt =_a .Date (_ab ,_ddb ,_eb ,_cb ,_ebd ,0,0,_a .UTC );
+
+// IsLogLevel returns true from dummy logger.
+func (DummyLogger )IsLogLevel (level LogLevel )bool {return true };
+
+// SetLogger sets 'logger' to be used by the unidoc unipdf library.
+func SetLogger (logger Logger ){Log =logger };
+
+// Info logs info message.
+func (_gg ConsoleLogger )Info (format string ,args ...interface{}){if _gg .LogLevel >=LogLevelInfo {_be :="\u005bI\u004e\u0046\u004f\u005d\u0020";_gg .output (_bb .Stdout ,_be ,format ,args ...);};};
 
 // Notice logs notice message.
-func (_ca WriterLogger )Notice (format string ,args ...interface{}){if _ca .LogLevel >=LogLevelNotice {_bda :="\u005bN\u004f\u0054\u0049\u0043\u0045\u005d ";_ca .logToWriter (_ca .Output ,_bda ,format ,args ...);};};
+func (_bda WriterLogger )Notice (format string ,args ...interface{}){if _bda .LogLevel >=LogLevelNotice {_dab :="\u005bN\u004f\u0054\u0049\u0043\u0045\u005d ";_bda .logToWriter (_bda .Output ,_dab ,format ,args ...);};};

contentstream/draw/draw.go

@@ -14,204 +14,204 @@
 // page content streams and XObject forms and thus also in annotation appearance streams.
 //
 // Also defines utility functions for drawing common shapes such as rectangles, lines and circles (ovals).
-package draw ;import (_f "fmt";_fb "github.com/unidoc/unipdf/v3/contentstream";_a "github.com/unidoc/unipdf/v3/core";_d "github.com/unidoc/unipdf/v3/internal/transform";_cf "github.com/unidoc/unipdf/v3/model";_ce "math";);
+package draw ;import (_e "fmt";_d "github.com/unidoc/unipdf/v3/contentstream";_ea "github.com/unidoc/unipdf/v3/core";_c "github.com/unidoc/unipdf/v3/internal/transform";_a "github.com/unidoc/unipdf/v3/model";_f "math";);
 
-// Offset shifts the path with the specified offsets.
-func (_fgg Path )Offset (offX ,offY float64 )Path {for _ee ,_cef :=range _fgg .Points {_fgg .Points [_ee ]=_cef .Add (offX ,offY );};return _fgg ;};
+// LineEndingStyle defines the line ending style for lines.
+// The currently supported line ending styles are None, Arrow (ClosedArrow) and Butt.
+type LineEndingStyle int ;func (_egg Point )String ()string {return _e .Sprintf ("(\u0025\u002e\u0031\u0066\u002c\u0025\u002e\u0031\u0066\u0029",_egg .X ,_egg .Y );};
 
-// AddOffsetXY adds X,Y offset to all points on a curve.
-func (_ea CubicBezierCurve )AddOffsetXY (offX ,offY float64 )CubicBezierCurve {_ea .P0 .X +=offX ;_ea .P1 .X +=offX ;_ea .P2 .X +=offX ;_ea .P3 .X +=offX ;_ea .P0 .Y +=offY ;_ea .P1 .Y +=offY ;_ea .P2 .Y +=offY ;_ea .P3 .Y +=offY ;return _ea ;};
+// NewPoint returns a new point with the coordinates x, y.
+func NewPoint (x ,y float64 )Point {return Point {X :x ,Y :y }};const (LineEndingStyleNone LineEndingStyle =0;LineEndingStyleArrow LineEndingStyle =1;LineEndingStyleButt LineEndingStyle =2;);
 
-// Copy returns a clone of the path.
-func (_af Path )Copy ()Path {_df :=Path {};_df .Points =[]Point {};for _ ,_bea :=range _af .Points {_df .Points =append (_df .Points ,_bea );};return _df ;};
+// ToPdfRectangle returns the rectangle as a PDF rectangle.
+func (_gce Rectangle )ToPdfRectangle ()*_a .PdfRectangle {return &_a .PdfRectangle {Llx :_gce .X ,Lly :_gce .Y ,Urx :_gce .X +_gce .Width ,Ury :_gce .Y +_gce .Height };};
 
-// Polygon is a multi-point shape that can be drawn to a PDF content stream.
-type Polygon struct{Points [][]Point ;FillEnabled bool ;FillColor *_cf .PdfColorDeviceRGB ;BorderEnabled bool ;BorderColor *_cf .PdfColorDeviceRGB ;BorderWidth float64 ;};
-
-// Rotate rotates the vector by the specified angle.
-func (_defe Vector )Rotate (phi float64 )Vector {_bbe :=_defe .Magnitude ();_bec :=_defe .GetPolarAngle ();return NewVectorPolar (_bbe ,_bec +phi );};const (LineEndingStyleNone LineEndingStyle =0;LineEndingStyleArrow LineEndingStyle =1;LineEndingStyleButt LineEndingStyle =2;);
-
-// FlipY flips the sign of the Dy component of the vector.
-func (_dgg Vector )FlipY ()Vector {_dgg .Dy =-_dgg .Dy ;return _dgg };
-
-// Path consists of straight line connections between each point defined in an array of points.
-type Path struct{Points []Point ;};
+// Draw draws the line to PDF contentstream. Generates the content stream which can be used in page contents or
+// appearance stream of annotation. Returns the stream content, XForm bounding box (local), bounding box and an error
+// if one occurred.
+func (_eab Line )Draw (gsName string )([]byte ,*_a .PdfRectangle ,error ){_aec ,_ee :=_eab .X1 ,_eab .X2 ;_efd ,_gcb :=_eab .Y1 ,_eab .Y2 ;_dba :=_gcb -_efd ;_faa :=_ee -_aec ;_bbbe :=_f .Atan2 (_dba ,_faa );L :=_f .Sqrt (_f .Pow (_faa ,2.0)+_f .Pow (_dba ,2.0));_baa :=_eab .LineWidth ;_gfd :=_f .Pi ;_bae :=1.0;if _faa < 0{_bae *=-1.0;};if _dba < 0{_bae *=-1.0;};VsX :=_bae *(-_baa /2*_f .Cos (_bbbe +_gfd /2));VsY :=_bae *(-_baa /2*_f .Sin (_bbbe +_gfd /2)+_baa *_f .Sin (_bbbe +_gfd /2));V1X :=VsX +_baa /2*_f .Cos (_bbbe +_gfd /2);V1Y :=VsY +_baa /2*_f .Sin (_bbbe +_gfd /2);V2X :=VsX +_baa /2*_f .Cos (_bbbe +_gfd /2)+L *_f .Cos (_bbbe );V2Y :=VsY +_baa /2*_f .Sin (_bbbe +_gfd /2)+L *_f .Sin (_bbbe );V3X :=VsX +_baa /2*_f .Cos (_bbbe +_gfd /2)+L *_f .Cos (_bbbe )+_baa *_f .Cos (_bbbe -_gfd /2);V3Y :=VsY +_baa /2*_f .Sin (_bbbe +_gfd /2)+L *_f .Sin (_bbbe )+_baa *_f .Sin (_bbbe -_gfd /2);V4X :=VsX +_baa /2*_f .Cos (_bbbe -_gfd /2);V4Y :=VsY +_baa /2*_f .Sin (_bbbe -_gfd /2);_fd :=NewPath ();_fd =_fd .AppendPoint (NewPoint (V1X ,V1Y ));_fd =_fd .AppendPoint (NewPoint (V2X ,V2Y ));_fd =_fd .AppendPoint (NewPoint (V3X ,V3Y ));_fd =_fd .AppendPoint (NewPoint (V4X ,V4Y ));_dc :=_eab .LineEndingStyle1 ;_afe :=_eab .LineEndingStyle2 ;_aae :=3*_baa ;_cged :=3*_baa ;_fed :=(_cged -_baa )/2;if _afe ==LineEndingStyleArrow {_bd :=_fd .GetPointNumber (2);_cbb :=NewVectorPolar (_aae ,_bbbe +_gfd );_bda :=_bd .AddVector (_cbb );_dgg :=NewVectorPolar (_cged /2,_bbbe +_gfd /2);_cgdg :=NewVectorPolar (_aae ,_bbbe );_eabg :=NewVectorPolar (_fed ,_bbbe +_gfd /2);_cd :=_bda .AddVector (_eabg );_fcd :=_cgdg .Add (_dgg .Flip ());_eae :=_cd .AddVector (_fcd );_dd :=_dgg .Scale (2).Flip ().Add (_fcd .Flip ());_acf :=_eae .AddVector (_dd );_egb :=_bda .AddVector (NewVectorPolar (_baa ,_bbbe -_gfd /2));_fb :=NewPath ();_fb =_fb .AppendPoint (_fd .GetPointNumber (1));_fb =_fb .AppendPoint (_bda );_fb =_fb .AppendPoint (_cd );_fb =_fb .AppendPoint (_eae );_fb =_fb .AppendPoint (_acf );_fb =_fb .AppendPoint (_egb );_fb =_fb .AppendPoint (_fd .GetPointNumber (4));_fd =_fb ;};if _dc ==LineEndingStyleArrow {_dacc :=_fd .GetPointNumber (1);_dgf :=_fd .GetPointNumber (_fd .Length ());_bee :=NewVectorPolar (_baa /2,_bbbe +_gfd +_gfd /2);_ddd :=_dacc .AddVector (_bee );_aca :=NewVectorPolar (_aae ,_bbbe ).Add (NewVectorPolar (_cged /2,_bbbe +_gfd /2));_fbb :=_ddd .AddVector (_aca );_fda :=NewVectorPolar (_fed ,_bbbe -_gfd /2);_edg :=_fbb .AddVector (_fda );_bff :=NewVectorPolar (_aae ,_bbbe );_cad :=_dgf .AddVector (_bff );_df :=NewVectorPolar (_fed ,_bbbe +_gfd +_gfd /2);_caf :=_cad .AddVector (_df );_cca :=_ddd ;_gab :=NewPath ();_gab =_gab .AppendPoint (_ddd );_gab =_gab .AppendPoint (_fbb );_gab =_gab .AppendPoint (_edg );for _ ,_gcbd :=range _fd .Points [1:len (_fd .Points )-1]{_gab =_gab .AppendPoint (_gcbd );};_gab =_gab .AppendPoint (_cad );_gab =_gab .AppendPoint (_caf );_gab =_gab .AppendPoint (_cca );_fd =_gab ;};_ad :=_d .NewContentCreator ();_ad .Add_q ().Add_rg (_eab .LineColor .R (),_eab .LineColor .G (),_eab .LineColor .B ());if len (gsName )> 1{_ad .Add_gs (_ea .PdfObjectName (gsName ));};_fd =_fd .Offset (_eab .X1 ,_eab .Y1 );_gabd :=_fd .GetBoundingBox ();DrawPathWithCreator (_fd ,_ad );if _eab .LineStyle ==LineStyleDashed {_ad .Add_d ([]int64 {1,1},0).Add_S ().Add_f ().Add_Q ();}else {_ad .Add_f ().Add_Q ();};return _ad .Bytes (),_gabd .ToPdfRectangle (),nil ;};
 
 // BoundingBox represents the smallest rectangular area that encapsulates an object.
 type BoundingBox struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;};
 
+// GetBoundingBox returns the bounding box of the path.
+func (_ag Path )GetBoundingBox ()BoundingBox {_ce :=BoundingBox {};_afd :=0.0;_afa :=0.0;_cgd :=0.0;_cbe :=0.0;for _bbb ,_de :=range _ag .Points {if _bbb ==0{_afd =_de .X ;_afa =_de .X ;_cgd =_de .Y ;_cbe =_de .Y ;continue ;};if _de .X < _afd {_afd =_de .X ;};if _de .X > _afa {_afa =_de .X ;};if _de .Y < _cgd {_cgd =_de .Y ;};if _de .Y > _cbe {_cbe =_de .Y ;};};_ce .X =_afd ;_ce .Y =_cgd ;_ce .Width =_afa -_afd ;_ce .Height =_cbe -_cgd ;return _ce ;};
+
+// Draw draws the composite Bezier curve. A graphics state name can be
+// specified for setting the curve properties (e.g. setting the opacity).
+// Otherwise leave empty (""). Returns the content stream as a byte array and
+// the curve bounding box.
+func (_afg PolyBezierCurve )Draw (gsName string )([]byte ,*_a .PdfRectangle ,error ){if _afg .BorderColor ==nil {_afg .BorderColor =_a .NewPdfColorDeviceRGB (0,0,0);};_ac :=NewCubicBezierPath ();for _ ,_ba :=range _afg .Curves {_ac =_ac .AppendCurve (_ba );};_fee :=_d .NewContentCreator ();_fee .Add_q ();_afg .FillEnabled =_afg .FillEnabled &&_afg .FillColor !=nil ;if _afg .FillEnabled {_fee .Add_rg (_afg .FillColor .R (),_afg .FillColor .G (),_afg .FillColor .B ());};_fee .Add_RG (_afg .BorderColor .R (),_afg .BorderColor .G (),_afg .BorderColor .B ());_fee .Add_w (_afg .BorderWidth );if len (gsName )> 1{_fee .Add_gs (_ea .PdfObjectName (gsName ));};for _ ,_fcb :=range _ac .Curves {_fee .Add_m (_fcb .P0 .X ,_fcb .P0 .Y );_fee .Add_c (_fcb .P1 .X ,_fcb .P1 .Y ,_fcb .P2 .X ,_fcb .P2 .Y ,_fcb .P3 .X ,_fcb .P3 .Y );};if _afg .FillEnabled {_fee .Add_h ();_fee .Add_B ();}else {_fee .Add_S ();};_fee .Add_Q ();return _fee .Bytes (),_ac .GetBoundingBox ().ToPdfRectangle (),nil ;};
+
+// Copy returns a clone of the Bezier path.
+func (_bg CubicBezierPath )Copy ()CubicBezierPath {_ga :=CubicBezierPath {};_ga .Curves =append (_ga .Curves ,_bg .Curves ...);return _ga ;};
+
 // NewCubicBezierCurve returns a new cubic Bezier curve.
-func NewCubicBezierCurve (x0 ,y0 ,x1 ,y1 ,x2 ,y2 ,x3 ,y3 float64 )CubicBezierCurve {_e :=CubicBezierCurve {};_e .P0 =NewPoint (x0 ,y0 );_e .P1 =NewPoint (x1 ,y1 );_e .P2 =NewPoint (x2 ,y2 );_e .P3 =NewPoint (x3 ,y3 );return _e ;};
+func NewCubicBezierCurve (x0 ,y0 ,x1 ,y1 ,x2 ,y2 ,x3 ,y3 float64 )CubicBezierCurve {_da :=CubicBezierCurve {};_da .P0 =NewPoint (x0 ,y0 );_da .P1 =NewPoint (x1 ,y1 );_da .P2 =NewPoint (x2 ,y2 );_da .P3 =NewPoint (x3 ,y3 );return _da ;};
 
-// Draw draws the basic line to PDF. Generates the content stream which can be used in page contents or appearance
-// stream of annotation. Returns the stream content, XForm bounding box (local), bounding box and an error if
-// one occurred.
-func (_aed BasicLine )Draw (gsName string )([]byte ,*_cf .PdfRectangle ,error ){_edg :=_aed .LineWidth ;_bbg :=NewPath ();_bbg =_bbg .AppendPoint (NewPoint (_aed .X1 ,_aed .Y1 ));_bbg =_bbg .AppendPoint (NewPoint (_aed .X2 ,_aed .Y2 ));_eda :=_fb .NewContentCreator ();_ebd :=_bbg .GetBoundingBox ();DrawPathWithCreator (_bbg ,_eda );if _aed .LineStyle ==LineStyleDashed {_eda .Add_d ([]int64 {1,1},0);};_eda .Add_RG (_aed .LineColor .R (),_aed .LineColor .G (),_aed .LineColor .B ()).Add_w (_edg ).Add_S ().Add_Q ();return _eda .Bytes (),_ebd .ToPdfRectangle (),nil ;};
+// RemovePoint removes the point at the index specified by number from the
+// path. The index is 1-based.
+func (_bgc Path )RemovePoint (number int )Path {if number < 1||number > len (_bgc .Points ){return _bgc ;};_db :=number -1;_bgc .Points =append (_bgc .Points [:_db ],_bgc .Points [_db +1:]...);return _bgc ;};
 
-// AddVector adds vector to a point.
-func (_ccc Point )AddVector (v Vector )Point {_ccc .X +=v .Dx ;_ccc .Y +=v .Dy ;return _ccc };
+// Point represents a two-dimensional point.
+type Point struct{X float64 ;Y float64 ;};
 
-// LineEndingStyle defines the line ending style for lines.
-// The currently supported line ending styles are None, Arrow (ClosedArrow) and Butt.
-type LineEndingStyle int ;
+// FlipY flips the sign of the Dy component of the vector.
+func (_bfbf Vector )FlipY ()Vector {_bfbf .Dy =-_bfbf .Dy ;return _bfbf };
 
-// GetBounds returns the bounding box of the Bezier curve.
-func (_g CubicBezierCurve )GetBounds ()_cf .PdfRectangle {_dd :=_g .P0 .X ;_ddb :=_g .P0 .X ;_ca :=_g .P0 .Y ;_b :=_g .P0 .Y ;for _bc :=0.0;_bc <=1.0;_bc +=0.001{Rx :=_g .P0 .X *_ce .Pow (1-_bc ,3)+_g .P1 .X *3*_bc *_ce .Pow (1-_bc ,2)+_g .P2 .X *3*_ce .Pow (_bc ,2)*(1-_bc )+_g .P3 .X *_ce .Pow (_bc ,3);Ry :=_g .P0 .Y *_ce .Pow (1-_bc ,3)+_g .P1 .Y *3*_bc *_ce .Pow (1-_bc ,2)+_g .P2 .Y *3*_ce .Pow (_bc ,2)*(1-_bc )+_g .P3 .Y *_ce .Pow (_bc ,3);if Rx < _dd {_dd =Rx ;};if Rx > _ddb {_ddb =Rx ;};if Ry < _ca {_ca =Ry ;};if Ry > _b {_b =Ry ;};};_ad :=_cf .PdfRectangle {};_ad .Llx =_dd ;_ad .Lly =_ca ;_ad .Urx =_ddb ;_ad .Ury =_b ;return _ad ;};
+// LineStyle refers to how the line will be created.
+type LineStyle int ;
+
+// NewVector returns a new vector with the direction specified by dx and dy.
+func NewVector (dx ,dy float64 )Vector {_bbf :=Vector {};_bbf .Dx =dx ;_bbf .Dy =dy ;return _bbf };
+
+// GetPolarAngle returns the angle the magnitude of the vector forms with the
+// positive X-axis going counterclockwise.
+func (_ceea Vector )GetPolarAngle ()float64 {return _f .Atan2 (_ceea .Dy ,_ceea .Dx )};
+
+// Draw draws the circle. Can specify a graphics state (gsName) for setting opacity etc.  Otherwise leave empty ("").
+// Returns the content stream as a byte array, the bounding box and an error on failure.
+func (_dgc Circle )Draw (gsName string )([]byte ,*_a .PdfRectangle ,error ){_ab :=_dgc .Width /2;_ced :=_dgc .Height /2;if _dgc .BorderEnabled {_ab -=_dgc .BorderWidth /2;_ced -=_dgc .BorderWidth /2;};_abd :=0.551784;_gag :=_ab *_abd ;_dge :=_ced *_abd ;_gf :=NewCubicBezierPath ();_gf =_gf .AppendCurve (NewCubicBezierCurve (-_ab ,0,-_ab ,_dge ,-_gag ,_ced ,0,_ced ));_gf =_gf .AppendCurve (NewCubicBezierCurve (0,_ced ,_gag ,_ced ,_ab ,_dge ,_ab ,0));_gf =_gf .AppendCurve (NewCubicBezierCurve (_ab ,0,_ab ,-_dge ,_gag ,-_ced ,0,-_ced ));_gf =_gf .AppendCurve (NewCubicBezierCurve (0,-_ced ,-_gag ,-_ced ,-_ab ,-_dge ,-_ab ,0));_gf =_gf .Offset (_ab ,_ced );if _dgc .BorderEnabled {_gf =_gf .Offset (_dgc .BorderWidth /2,_dgc .BorderWidth /2);};if _dgc .X !=0||_dgc .Y !=0{_gf =_gf .Offset (_dgc .X ,_dgc .Y );};_gc :=_d .NewContentCreator ();_gc .Add_q ();if _dgc .FillEnabled {_gc .Add_rg (_dgc .FillColor .R (),_dgc .FillColor .G (),_dgc .FillColor .B ());};if _dgc .BorderEnabled {_gc .Add_RG (_dgc .BorderColor .R (),_dgc .BorderColor .G (),_dgc .BorderColor .B ());_gc .Add_w (_dgc .BorderWidth );};if len (gsName )> 1{_gc .Add_gs (_ea .PdfObjectName (gsName ));};DrawBezierPathWithCreator (_gf ,_gc );_gc .Add_h ();if _dgc .FillEnabled &&_dgc .BorderEnabled {_gc .Add_B ();}else if _dgc .FillEnabled {_gc .Add_f ();}else if _dgc .BorderEnabled {_gc .Add_S ();};_gc .Add_Q ();_gd :=_gf .GetBoundingBox ();if _dgc .BorderEnabled {_gd .Height +=_dgc .BorderWidth ;_gd .Width +=_dgc .BorderWidth ;_gd .X -=_dgc .BorderWidth /2;_gd .Y -=_dgc .BorderWidth /2;};return _gc .Bytes (),_gd .ToPdfRectangle (),nil ;};
+
+// Path consists of straight line connections between each point defined in an array of points.
+type Path struct{Points []Point ;};
+
+// Add shifts the coordinates of the point with dx, dy and returns the result.
+func (_bgd Point )Add (dx ,dy float64 )Point {_bgd .X +=dx ;_bgd .Y +=dy ;return _bgd };
+
+// DrawBezierPathWithCreator makes the bezier path with the content creator.
+// Adds the PDF commands to draw the path to the creator instance.
+func DrawBezierPathWithCreator (bpath CubicBezierPath ,creator *_d .ContentCreator ){for _agf ,_fcc :=range bpath .Curves {if _agf ==0{creator .Add_m (_fcc .P0 .X ,_fcc .P0 .Y );};creator .Add_c (_fcc .P1 .X ,_fcc .P1 .Y ,_fcc .P2 .X ,_fcc .P2 .Y ,_fcc .P3 .X ,_fcc .P3 .Y );};};
+
+// ToPdfRectangle returns the bounding box as a PDF rectangle.
+func (_dg BoundingBox )ToPdfRectangle ()*_a .PdfRectangle {return &_a .PdfRectangle {Llx :_dg .X ,Lly :_dg .Y ,Urx :_dg .X +_dg .Width ,Ury :_dg .Y +_dg .Height };};
+
+// GetPointNumber returns the path point at the index specified by number.
+// The index is 1-based.
+func (_ed Path )GetPointNumber (number int )Point {if number < 1||number > len (_ed .Points ){return Point {};};return _ed .Points [number -1];};
+
+// Rotate returns a new Point at `p` rotated by `theta` degrees.
+func (_egc Point )Rotate (theta float64 )Point {_bfb :=_c .NewPoint (_egc .X ,_egc .Y ).Rotate (theta );return NewPoint (_bfb .X ,_bfb .Y );};
+
+// Add adds the specified vector to the current one and returns the result.
+func (_aac Vector )Add (other Vector )Vector {_aac .Dx +=other .Dx ;_aac .Dy +=other .Dy ;return _aac };
+
+// Rectangle is a shape with a specified Width and Height and a lower left corner at (X,Y) that can be
+// drawn to a PDF content stream.  The rectangle can optionally have a border and a filling color.
+// The Width/Height includes the border (if any specified), i.e. is positioned inside.
+type Rectangle struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;FillEnabled bool ;FillColor *_a .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_a .PdfColorDeviceRGB ;Opacity float64 ;};
+
+// Copy returns a clone of the path.
+func (_ffa Path )Copy ()Path {_geg :=Path {};_geg .Points =append (_geg .Points ,_ffa .Points ...);return _geg ;};
+
+// AppendPoint adds the specified point to the path.
+func (_ebc Path )AppendPoint (point Point )Path {_ebc .Points =append (_ebc .Points ,point );return _ebc };
+
+// Scale scales the vector by the specified factor.
+func (_ffd Vector )Scale (factor float64 )Vector {_gef :=_ffd .Magnitude ();_acge :=_ffd .GetPolarAngle ();_ffd .Dx =factor *_gef *_f .Cos (_acge );_ffd .Dy =factor *_gef *_f .Sin (_acge );return _ffd ;};
+
+// Circle represents a circle shape with fill and border properties that can be drawn to a PDF content stream.
+type Circle struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;FillEnabled bool ;FillColor *_a .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_a .PdfColorDeviceRGB ;Opacity float64 ;};
+
+// NewPath returns a new empty path.
+func NewPath ()Path {return Path {}};const (LineStyleSolid LineStyle =0;LineStyleDashed LineStyle =1;);
+
+// Offset shifts the Bezier path with the specified offsets.
+func (_aad CubicBezierPath )Offset (offX ,offY float64 )CubicBezierPath {for _bb ,_ca :=range _aad .Curves {_aad .Curves [_bb ]=_ca .AddOffsetXY (offX ,offY );};return _aad ;};
+
+// Rotate rotates the vector by the specified angle.
+func (_gg Vector )Rotate (phi float64 )Vector {_ccc :=_gg .Magnitude ();_fcg :=_gg .GetPolarAngle ();return NewVectorPolar (_ccc ,_fcg +phi );};
+
+// AddOffsetXY adds X,Y offset to all points on a curve.
+func (_aa CubicBezierCurve )AddOffsetXY (offX ,offY float64 )CubicBezierCurve {_aa .P0 .X +=offX ;_aa .P1 .X +=offX ;_aa .P2 .X +=offX ;_aa .P3 .X +=offX ;_aa .P0 .Y +=offY ;_aa .P1 .Y +=offY ;_aa .P2 .Y +=offY ;_aa .P3 .Y +=offY ;return _aa ;};
+
+// GetBoundingBox returns the bounding box of the Bezier path.
+func (_gb CubicBezierPath )GetBoundingBox ()Rectangle {_ef :=Rectangle {};_cg :=0.0;_dac :=0.0;_eb :=0.0;_ged :=0.0;for _bgg ,_fa :=range _gb .Curves {_ff :=_fa .GetBounds ();if _bgg ==0{_cg =_ff .Llx ;_dac =_ff .Urx ;_eb =_ff .Lly ;_ged =_ff .Ury ;continue ;};if _ff .Llx < _cg {_cg =_ff .Llx ;};if _ff .Urx > _dac {_dac =_ff .Urx ;};if _ff .Lly < _eb {_eb =_ff .Lly ;};if _ff .Ury > _ged {_ged =_ff .Ury ;};};_ef .X =_cg ;_ef .Y =_eb ;_ef .Width =_dac -_cg ;_ef .Height =_ged -_eb ;return _ef ;};
+
+// CubicBezierPath represents a collection of cubic Bezier curves.
+type CubicBezierPath struct{Curves []CubicBezierCurve ;};
+
+// Polyline defines a slice of points that are connected as straight lines.
+type Polyline struct{Points []Point ;LineColor *_a .PdfColorDeviceRGB ;LineWidth float64 ;};
+
+// FlipX flips the sign of the Dx component of the vector.
+func (_cfd Vector )FlipX ()Vector {_cfd .Dx =-_cfd .Dx ;return _cfd };
 
 // Draw draws the polyline. A graphics state name can be specified for
 // setting the polyline properties (e.g. setting the opacity). Otherwise leave
 // empty (""). Returns the content stream as a byte array and the polyline
 // bounding box.
-func (_ddbe Polyline )Draw (gsName string )([]byte ,*_cf .PdfRectangle ,error ){if _ddbe .LineColor ==nil {_ddbe .LineColor =_cf .NewPdfColorDeviceRGB (0,0,0);};_abfa :=NewPath ();for _ ,_edf :=range _ddbe .Points {_abfa =_abfa .AppendPoint (_edf );};_gge :=_fb .NewContentCreator ();_gge .Add_q ();_gge .Add_RG (_ddbe .LineColor .R (),_ddbe .LineColor .G (),_ddbe .LineColor .B ());_gge .Add_w (_ddbe .LineWidth );if len (gsName )> 1{_gge .Add_gs (_a .PdfObjectName (gsName ));};DrawPathWithCreator (_abfa ,_gge );_gge .Add_S ();_gge .Add_Q ();return _gge .Bytes (),_abfa .GetBoundingBox ().ToPdfRectangle (),nil ;};
+func (_baf Polyline )Draw (gsName string )([]byte ,*_a .PdfRectangle ,error ){if _baf .LineColor ==nil {_baf .LineColor =_a .NewPdfColorDeviceRGB (0,0,0);};_ecb :=NewPath ();for _ ,_egf :=range _baf .Points {_ecb =_ecb .AppendPoint (_egf );};_edd :=_d .NewContentCreator ();_edd .Add_q ();_edd .Add_RG (_baf .LineColor .R (),_baf .LineColor .G (),_baf .LineColor .B ());_edd .Add_w (_baf .LineWidth );if len (gsName )> 1{_edd .Add_gs (_ea .PdfObjectName (gsName ));};DrawPathWithCreator (_ecb ,_edd );_edd .Add_S ();_edd .Add_Q ();return _edd .Bytes (),_ecb .GetBoundingBox ().ToPdfRectangle (),nil ;};
 
-// Magnitude returns the magnitude of the vector.
-func (_gfa Vector )Magnitude ()float64 {return _ce .Sqrt (_ce .Pow (_gfa .Dx ,2.0)+_ce .Pow (_gfa .Dy ,2.0));};
+// Line defines a line shape between point 1 (X1,Y1) and point 2 (X2,Y2).  The line ending styles can be none (regular line),
+// or arrows at either end.  The line also has a specified width, color and opacity.
+type Line struct{X1 float64 ;Y1 float64 ;X2 float64 ;Y2 float64 ;LineColor *_a .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineEndingStyle1 LineEndingStyle ;LineEndingStyle2 LineEndingStyle ;LineStyle LineStyle ;};
 
-// Rectangle is a shape with a specified Width and Height and a lower left corner at (X,Y) that can be
-// drawn to a PDF content stream.  The rectangle can optionally have a border and a filling color.
-// The Width/Height includes the border (if any specified), i.e. is positioned inside.
-type Rectangle struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;FillEnabled bool ;FillColor *_cf .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_cf .PdfColorDeviceRGB ;Opacity float64 ;};func (_ebb Point )String ()string {return _f .Sprintf ("(\u0025\u002e\u0031\u0066\u002c\u0025\u002e\u0031\u0066\u0029",_ebb .X ,_ebb .Y );};
+// Vector represents a two-dimensional vector.
+type Vector struct{Dx float64 ;Dy float64 ;};
 
-// Copy returns a clone of the Bezier path.
-func (_cd CubicBezierPath )Copy ()CubicBezierPath {_dc :=CubicBezierPath {};_dc .Curves =[]CubicBezierCurve {};for _ ,_ddg :=range _cd .Curves {_dc .Curves =append (_dc .Curves ,_ddg );};return _dc ;};
-
-// Add shifts the coordinates of the point with dx, dy and returns the result.
-func (_ae Point )Add (dx ,dy float64 )Point {_ae .X +=dx ;_ae .Y +=dy ;return _ae };
-
-// NewVectorBetween returns a new vector with the direction specified by
-// the subtraction of point a from point b (b-a).
-func NewVectorBetween (a Point ,b Point )Vector {_dad :=Vector {};_dad .Dx =b .X -a .X ;_dad .Dy =b .Y -a .Y ;return _dad ;};
-
-// NewVector returns a new vector with the direction specified by dx and dy.
-func NewVector (dx ,dy float64 )Vector {_acf :=Vector {};_acf .Dx =dx ;_acf .Dy =dy ;return _acf };
-
-// Circle represents a circle shape with fill and border properties that can be drawn to a PDF content stream.
-type Circle struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;FillEnabled bool ;FillColor *_cf .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_cf .PdfColorDeviceRGB ;Opacity float64 ;};
-
-// Draw draws the line to PDF contentstream. Generates the content stream which can be used in page contents or
-// appearance stream of annotation. Returns the stream content, XForm bounding box (local), bounding box and an error
-// if one occurred.
-func (_ece Line )Draw (gsName string )([]byte ,*_cf .PdfRectangle ,error ){_fdg ,_eg :=_ece .X1 ,_ece .X2 ;_gcf ,_dfa :=_ece .Y1 ,_ece .Y2 ;_bg :=_dfa -_gcf ;_bfbd :=_eg -_fdg ;_abdb :=_ce .Atan2 (_bg ,_bfbd );L :=_ce .Sqrt (_ce .Pow (_bfbd ,2.0)+_ce .Pow (_bg ,2.0));_dac :=_ece .LineWidth ;_ag :=_ce .Pi ;_gbf :=1.0;if _bfbd < 0{_gbf *=-1.0;};if _bg < 0{_gbf *=-1.0;};VsX :=_gbf *(-_dac /2*_ce .Cos (_abdb +_ag /2));VsY :=_gbf *(-_dac /2*_ce .Sin (_abdb +_ag /2)+_dac *_ce .Sin (_abdb +_ag /2));V1X :=VsX +_dac /2*_ce .Cos (_abdb +_ag /2);V1Y :=VsY +_dac /2*_ce .Sin (_abdb +_ag /2);V2X :=VsX +_dac /2*_ce .Cos (_abdb +_ag /2)+L *_ce .Cos (_abdb );V2Y :=VsY +_dac /2*_ce .Sin (_abdb +_ag /2)+L *_ce .Sin (_abdb );V3X :=VsX +_dac /2*_ce .Cos (_abdb +_ag /2)+L *_ce .Cos (_abdb )+_dac *_ce .Cos (_abdb -_ag /2);V3Y :=VsY +_dac /2*_ce .Sin (_abdb +_ag /2)+L *_ce .Sin (_abdb )+_dac *_ce .Sin (_abdb -_ag /2);V4X :=VsX +_dac /2*_ce .Cos (_abdb -_ag /2);V4Y :=VsY +_dac /2*_ce .Sin (_abdb -_ag /2);_abg :=NewPath ();_abg =_abg .AppendPoint (NewPoint (V1X ,V1Y ));_abg =_abg .AppendPoint (NewPoint (V2X ,V2Y ));_abg =_abg .AppendPoint (NewPoint (V3X ,V3Y ));_abg =_abg .AppendPoint (NewPoint (V4X ,V4Y ));_fdd :=_ece .LineEndingStyle1 ;_eeac :=_ece .LineEndingStyle2 ;_fff :=3*_dac ;_egf :=3*_dac ;_eae :=(_egf -_dac )/2;if _eeac ==LineEndingStyleArrow {_egfc :=_abg .GetPointNumber (2);_bfg :=NewVectorPolar (_fff ,_abdb +_ag );_egc :=_egfc .AddVector (_bfg );_gda :=NewVectorPolar (_egf /2,_abdb +_ag /2);_cdae :=NewVectorPolar (_fff ,_abdb );_ceff :=NewVectorPolar (_eae ,_abdb +_ag /2);_abb :=_egc .AddVector (_ceff );_fgd :=_cdae .Add (_gda .Flip ());_cae :=_abb .AddVector (_fgd );_bgc :=_gda .Scale (2).Flip ().Add (_fgd .Flip ());_dab :=_cae .AddVector (_bgc );_ede :=_egc .AddVector (NewVectorPolar (_dac ,_abdb -_ag /2));_dfge :=NewPath ();_dfge =_dfge .AppendPoint (_abg .GetPointNumber (1));_dfge =_dfge .AppendPoint (_egc );_dfge =_dfge .AppendPoint (_abb );_dfge =_dfge .AppendPoint (_cae );_dfge =_dfge .AppendPoint (_dab );_dfge =_dfge .AppendPoint (_ede );_dfge =_dfge .AppendPoint (_abg .GetPointNumber (4));_abg =_dfge ;};if _fdd ==LineEndingStyleArrow {_ecd :=_abg .GetPointNumber (1);_geb :=_abg .GetPointNumber (_abg .Length ());_ebba :=NewVectorPolar (_dac /2,_abdb +_ag +_ag /2);_fggb :=_ecd .AddVector (_ebba );_fdc :=NewVectorPolar (_fff ,_abdb ).Add (NewVectorPolar (_egf /2,_abdb +_ag /2));_adb :=_fggb .AddVector (_fdc );_eaa :=NewVectorPolar (_eae ,_abdb -_ag /2);_bdg :=_adb .AddVector (_eaa );_dfe :=NewVectorPolar (_fff ,_abdb );_dg :=_geb .AddVector (_dfe );_gfc :=NewVectorPolar (_eae ,_abdb +_ag +_ag /2);_eec :=_dg .AddVector (_gfc );_fbg :=_fggb ;_eag :=NewPath ();_eag =_eag .AppendPoint (_fggb );_eag =_eag .AppendPoint (_adb );_eag =_eag .AppendPoint (_bdg );for _ ,_ba :=range _abg .Points [1:len (_abg .Points )-1]{_eag =_eag .AppendPoint (_ba );};_eag =_eag .AppendPoint (_dg );_eag =_eag .AppendPoint (_eec );_eag =_eag .AppendPoint (_fbg );_abg =_eag ;};_gg :=_fb .NewContentCreator ();_gg .Add_q ().Add_rg (_ece .LineColor .R (),_ece .LineColor .G (),_ece .LineColor .B ());if len (gsName )> 1{_gg .Add_gs (_a .PdfObjectName (gsName ));};_abg =_abg .Offset (_ece .X1 ,_ece .Y1 );_efe :=_abg .GetBoundingBox ();DrawPathWithCreator (_abg ,_gg );if _ece .LineStyle ==LineStyleDashed {_gg .Add_d ([]int64 {1,1},0).Add_S ().Add_f ().Add_Q ();}else {_gg .Add_f ().Add_Q ();};return _gg .Bytes (),_efe .ToPdfRectangle (),nil ;};
-
-// Scale scales the vector by the specified factor.
-func (_gde Vector )Scale (factor float64 )Vector {_bfbc :=_gde .Magnitude ();_ddc :=_gde .GetPolarAngle ();_gde .Dx =factor *_bfbc *_ce .Cos (_ddc );_gde .Dy =factor *_bfbc *_ce .Sin (_ddc );return _gde ;};
-
-// Polyline defines a slice of points that are connected as straight lines.
-type Polyline struct{Points []Point ;LineColor *_cf .PdfColorDeviceRGB ;LineWidth float64 ;};
-
-// ToPdfRectangle returns the bounding box as a PDF rectangle.
-func (_bf BoundingBox )ToPdfRectangle ()*_cf .PdfRectangle {return &_cf .PdfRectangle {Llx :_bf .X ,Lly :_bf .Y ,Urx :_bf .X +_bf .Width ,Ury :_bf .Y +_bf .Height };};
+// GetBounds returns the bounding box of the Bezier curve.
+func (_b CubicBezierCurve )GetBounds ()_a .PdfRectangle {_ge :=_b .P0 .X ;_af :=_b .P0 .X ;_ae :=_b .P0 .Y ;_ec :=_b .P0 .Y ;for _eg :=0.0;_eg <=1.0;_eg +=0.001{Rx :=_b .P0 .X *_f .Pow (1-_eg ,3)+_b .P1 .X *3*_eg *_f .Pow (1-_eg ,2)+_b .P2 .X *3*_f .Pow (_eg ,2)*(1-_eg )+_b .P3 .X *_f .Pow (_eg ,3);Ry :=_b .P0 .Y *_f .Pow (1-_eg ,3)+_b .P1 .Y *3*_eg *_f .Pow (1-_eg ,2)+_b .P2 .Y *3*_f .Pow (_eg ,2)*(1-_eg )+_b .P3 .Y *_f .Pow (_eg ,3);if Rx < _ge {_ge =Rx ;};if Rx > _af {_af =Rx ;};if Ry < _ae {_ae =Ry ;};if Ry > _ec {_ec =Ry ;};};_fe :=_a .PdfRectangle {};_fe .Llx =_ge ;_fe .Lly =_ae ;_fe .Urx =_af ;_fe .Ury =_ec ;return _fe ;};
 
 // PolyBezierCurve represents a composite curve that is the result of
 // joining multiple cubic Bezier curves.
-type PolyBezierCurve struct{Curves []CubicBezierCurve ;BorderWidth float64 ;BorderColor *_cf .PdfColorDeviceRGB ;FillEnabled bool ;FillColor *_cf .PdfColorDeviceRGB ;};
+type PolyBezierCurve struct{Curves []CubicBezierCurve ;BorderWidth float64 ;BorderColor *_a .PdfColorDeviceRGB ;FillEnabled bool ;FillColor *_a .PdfColorDeviceRGB ;};
 
-// Offset shifts the Bezier path with the specified offsets.
-func (_be CubicBezierPath )Offset (offX ,offY float64 )CubicBezierPath {for _aa ,_ge :=range _be .Curves {_be .Curves [_aa ]=_ge .AddOffsetXY (offX ,offY );};return _be ;};
-
-// DrawBezierPathWithCreator makes the bezier path with the content creator.
-// Adds the PDF commands to draw the path to the creator instance.
-func DrawBezierPathWithCreator (bpath CubicBezierPath ,creator *_fb .ContentCreator ){for _fdb ,_fbf :=range bpath .Curves {if _fdb ==0{creator .Add_m (_fbf .P0 .X ,_fbf .P0 .Y );};creator .Add_c (_fbf .P1 .X ,_fbf .P1 .Y ,_fbf .P2 .X ,_fbf .P2 .Y ,_fbf .P3 .X ,_fbf .P3 .Y );};};
+// AppendCurve appends the specified Bezier curve to the path.
+func (_cb CubicBezierPath )AppendCurve (curve CubicBezierCurve )CubicBezierPath {_cb .Curves =append (_cb .Curves ,curve );return _cb ;};
 
 // NewCubicBezierPath returns a new empty cubic Bezier path.
-func NewCubicBezierPath ()CubicBezierPath {_de :=CubicBezierPath {};_de .Curves =[]CubicBezierCurve {};return _de ;};
+func NewCubicBezierPath ()CubicBezierPath {_bf :=CubicBezierPath {};_bf .Curves =[]CubicBezierCurve {};return _bf ;};
 
-// ToPdfRectangle returns the rectangle as a PDF rectangle.
-func (_deed Rectangle )ToPdfRectangle ()*_cf .PdfRectangle {return &_cf .PdfRectangle {Llx :_deed .X ,Lly :_deed .Y ,Urx :_deed .X +_deed .Width ,Ury :_deed .Y +_deed .Height };};
+// AddVector adds vector to a point.
+func (_be Point )AddVector (v Vector )Point {_be .X +=v .Dx ;_be .Y +=v .Dy ;return _be };
 
-// Draw draws the rectangle. Can specify a graphics state (gsName) for setting opacity etc.
-// Otherwise leave empty (""). Returns the content stream as a byte array, bounding box and an error on failure.
-func (_dda Rectangle )Draw (gsName string )([]byte ,*_cf .PdfRectangle ,error ){_dbb :=NewPath ();_dbb =_dbb .AppendPoint (NewPoint (0,0));_dbb =_dbb .AppendPoint (NewPoint (0,_dda .Height ));_dbb =_dbb .AppendPoint (NewPoint (_dda .Width ,_dda .Height ));_dbb =_dbb .AppendPoint (NewPoint (_dda .Width ,0));_dbb =_dbb .AppendPoint (NewPoint (0,0));if _dda .X !=0||_dda .Y !=0{_dbb =_dbb .Offset (_dda .X ,_dda .Y );};_eac :=_fb .NewContentCreator ();_eac .Add_q ();if _dda .FillEnabled {_eac .Add_rg (_dda .FillColor .R (),_dda .FillColor .G (),_dda .FillColor .B ());};if _dda .BorderEnabled {_eac .Add_RG (_dda .BorderColor .R (),_dda .BorderColor .G (),_dda .BorderColor .B ());_eac .Add_w (_dda .BorderWidth );};if len (gsName )> 1{_eac .Add_gs (_a .PdfObjectName (gsName ));};DrawPathWithCreator (_dbb ,_eac );_eac .Add_h ();if _dda .FillEnabled &&_dda .BorderEnabled {_eac .Add_B ();}else if _dda .FillEnabled {_eac .Add_f ();}else if _dda .BorderEnabled {_eac .Add_S ();};_eac .Add_Q ();return _eac .Bytes (),_dbb .GetBoundingBox ().ToPdfRectangle (),nil ;};
+// Flip changes the sign of the vector: -vector.
+func (_dcc Vector )Flip ()Vector {_fafg :=_dcc .Magnitude ();_egge :=_dcc .GetPolarAngle ();_dcc .Dx =_fafg *_f .Cos (_egge +_f .Pi );_dcc .Dy =_fafg *_f .Sin (_egge +_f .Pi );return _dcc ;};
+
+// NewVectorBetween returns a new vector with the direction specified by
+// the subtraction of point a from point b (b-a).
+func NewVectorBetween (a Point ,b Point )Vector {_dcb :=Vector {};_dcb .Dx =b .X -a .X ;_dcb .Dy =b .Y -a .Y ;return _dcb ;};
+
+// NewVectorPolar returns a new vector calculated from the specified
+// magnitude and angle.
+func NewVectorPolar (length float64 ,theta float64 )Vector {_cag :=Vector {};_cag .Dx =length *_f .Cos (theta );_cag .Dy =length *_f .Sin (theta );return _cag ;};
+
+// Magnitude returns the magnitude of the vector.
+func (_cde Vector )Magnitude ()float64 {return _f .Sqrt (_f .Pow (_cde .Dx ,2.0)+_f .Pow (_cde .Dy ,2.0))};
+
+// DrawPathWithCreator makes the path with the content creator.
+// Adds the PDF commands to draw the path to the creator instance.
+func DrawPathWithCreator (path Path ,creator *_d .ContentCreator ){for _def ,_gcbf :=range path .Points {if _def ==0{creator .Add_m (_gcbf .X ,_gcbf .Y );}else {creator .Add_l (_gcbf .X ,_gcbf .Y );};};};
+
+// Length returns the number of points in the path.
+func (_fc Path )Length ()int {return len (_fc .Points )};
 
 // CubicBezierCurve is defined by:
 // R(t) = P0*(1-t)^3 + P1*3*t*(1-t)^2 + P2*3*t^2*(1-t) + P3*t^3
 // where P0 is the current point, P1, P2 control points and P3 the final point.
 type CubicBezierCurve struct{P0 Point ;P1 Point ;P2 Point ;P3 Point ;};
 
-// Draw draws the circle. Can specify a graphics state (gsName) for setting opacity etc.  Otherwise leave empty ("").
-// Returns the content stream as a byte array, the bounding box and an error on failure.
-func (_gc Circle )Draw (gsName string )([]byte ,*_cf .PdfRectangle ,error ){_def :=_gc .Width /2;_ddf :=_gc .Height /2;if _gc .BorderEnabled {_def -=_gc .BorderWidth /2;_ddf -=_gc .BorderWidth /2;};_adf :=0.551784;_aab :=_def *_adf ;_cda :=_ddf *_adf ;_eea :=NewCubicBezierPath ();_eea =_eea .AppendCurve (NewCubicBezierCurve (-_def ,0,-_def ,_cda ,-_aab ,_ddf ,0,_ddf ));_eea =_eea .AppendCurve (NewCubicBezierCurve (0,_ddf ,_aab ,_ddf ,_def ,_cda ,_def ,0));_eea =_eea .AppendCurve (NewCubicBezierCurve (_def ,0,_def ,-_cda ,_aab ,-_ddf ,0,-_ddf ));_eea =_eea .AppendCurve (NewCubicBezierCurve (0,-_ddf ,-_aab ,-_ddf ,-_def ,-_cda ,-_def ,0));_eea =_eea .Offset (_def ,_ddf );if _gc .BorderEnabled {_eea =_eea .Offset (_gc .BorderWidth /2,_gc .BorderWidth /2);};if _gc .X !=0||_gc .Y !=0{_eea =_eea .Offset (_gc .X ,_gc .Y );};_acb :=_fb .NewContentCreator ();_acb .Add_q ();if _gc .FillEnabled {_acb .Add_rg (_gc .FillColor .R (),_gc .FillColor .G (),_gc .FillColor .B ());};if _gc .BorderEnabled {_acb .Add_RG (_gc .BorderColor .R (),_gc .BorderColor .G (),_gc .BorderColor .B ());_acb .Add_w (_gc .BorderWidth );};if len (gsName )> 1{_acb .Add_gs (_a .PdfObjectName (gsName ));};DrawBezierPathWithCreator (_eea ,_acb );_acb .Add_h ();if _gc .FillEnabled &&_gc .BorderEnabled {_acb .Add_B ();}else if _gc .FillEnabled {_acb .Add_f ();}else if _gc .BorderEnabled {_acb .Add_S ();};_acb .Add_Q ();_gdg :=_eea .GetBoundingBox ();if _gc .BorderEnabled {_gdg .Height +=_gc .BorderWidth ;_gdg .Width +=_gc .BorderWidth ;_gdg .X -=_gc .BorderWidth /2;_gdg .Y -=_gc .BorderWidth /2;};return _acb .Bytes (),_gdg .ToPdfRectangle (),nil ;};
+// Polygon is a multi-point shape that can be drawn to a PDF content stream.
+type Polygon struct{Points [][]Point ;FillEnabled bool ;FillColor *_a .PdfColorDeviceRGB ;BorderEnabled bool ;BorderColor *_a .PdfColorDeviceRGB ;BorderWidth float64 ;};
 
-// BasicLine defines a line between point 1 (X1,Y1) and point 2 (X2,Y2). The line has a specified width, color and opacity.
-type BasicLine struct{X1 float64 ;Y1 float64 ;X2 float64 ;Y2 float64 ;LineColor *_cf .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineStyle LineStyle ;};
+// Offset shifts the path with the specified offsets.
+func (_gec Path )Offset (offX ,offY float64 )Path {for _cc ,_gee :=range _gec .Points {_gec .Points [_cc ]=_gee .Add (offX ,offY );};return _gec ;};
 
-// Line defines a line shape between point 1 (X1,Y1) and point 2 (X2,Y2).  The line ending styles can be none (regular line),
-// or arrows at either end.  The line also has a specified width, color and opacity.
-type Line struct{X1 float64 ;Y1 float64 ;X2 float64 ;Y2 float64 ;LineColor *_cf .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineEndingStyle1 LineEndingStyle ;LineEndingStyle2 LineEndingStyle ;LineStyle LineStyle ;};
+// Draw draws the basic line to PDF. Generates the content stream which can be used in page contents or appearance
+// stream of annotation. Returns the stream content, XForm bounding box (local), bounding box and an error if
+// one occurred.
+func (_faf BasicLine )Draw (gsName string )([]byte ,*_a .PdfRectangle ,error ){_bbbg :=_faf .LineWidth ;_gdg :=NewPath ();_gdg =_gdg .AppendPoint (NewPoint (_faf .X1 ,_faf .Y1 ));_gdg =_gdg .AppendPoint (NewPoint (_faf .X2 ,_faf .Y2 ));_bc :=_d .NewContentCreator ();_gcdc :=_gdg .GetBoundingBox ();DrawPathWithCreator (_gdg ,_bc );if _faf .LineStyle ==LineStyleDashed {_bc .Add_d ([]int64 {1,1},0);};_bc .Add_RG (_faf .LineColor .R (),_faf .LineColor .G (),_faf .LineColor .B ()).Add_w (_bbbg ).Add_S ().Add_Q ();return _bc .Bytes (),_gcdc .ToPdfRectangle (),nil ;};
 
-// NewVectorPolar returns a new vector calculated from the specified
-// magnitude and angle.
-func NewVectorPolar (length float64 ,theta float64 )Vector {_dbd :=Vector {};_dbd .Dx =length *_ce .Cos (theta );_dbd .Dy =length *_ce .Sin (theta );return _dbd ;};
-
-// CubicBezierPath represents a collection of cubic Bezier curves.
-type CubicBezierPath struct{Curves []CubicBezierCurve ;};
-
-// Add adds the specified vector to the current one and returns the result.
-func (_ffg Vector )Add (other Vector )Vector {_ffg .Dx +=other .Dx ;_ffg .Dy +=other .Dy ;return _ffg };
-
-// Length returns the number of points in the path.
-func (_fd Path )Length ()int {return len (_fd .Points )};
-
-// DrawPathWithCreator makes the path with the content creator.
-// Adds the PDF commands to draw the path to the creator instance.
-func DrawPathWithCreator (path Path ,creator *_fb .ContentCreator ){for _dgc ,_fba :=range path .Points {if _dgc ==0{creator .Add_m (_fba .X ,_fba .Y );}else {creator .Add_l (_fba .X ,_fba .Y );};};};
-
-// RemovePoint removes the point at the index specified by number from the
-// path. The index is 1-based.
-func (_ec Path )RemovePoint (number int )Path {if number < 1||number > len (_ec .Points ){return _ec ;};_bcg :=number -1;_ec .Points =append (_ec .Points [:_bcg ],_ec .Points [_bcg +1:]...);return _ec ;};
-
-// NewPoint returns a new point with the coordinates x, y.
-func NewPoint (x ,y float64 )Point {return Point {X :x ,Y :y }};
-
-// GetPointNumber returns the path point at the index specified by number.
-// The index is 1-based.
-func (_gd Path )GetPointNumber (number int )Point {if number < 1||number > len (_gd .Points ){return Point {};};return _gd .Points [number -1];};
-
-// NewPath returns a new empty path.
-func NewPath ()Path {return Path {}};
-
-// GetPolarAngle returns the angle the magnitude of the vector forms with the
-// positive X-axis going counterclockwise.
-func (_bgb Vector )GetPolarAngle ()float64 {return _ce .Atan2 (_bgb .Dy ,_bgb .Dx )};
+// Draw draws the rectangle. Can specify a graphics state (gsName) for setting opacity etc.
+// Otherwise leave empty (""). Returns the content stream as a byte array, bounding box and an error on failure.
+func (_bba Rectangle )Draw (gsName string )([]byte ,*_a .PdfRectangle ,error ){_cf :=NewPath ();_cf =_cf .AppendPoint (NewPoint (0,0));_cf =_cf .AppendPoint (NewPoint (0,_bba .Height ));_cf =_cf .AppendPoint (NewPoint (_bba .Width ,_bba .Height ));_cf =_cf .AppendPoint (NewPoint (_bba .Width ,0));_cf =_cf .AppendPoint (NewPoint (0,0));if _bba .X !=0||_bba .Y !=0{_cf =_cf .Offset (_bba .X ,_bba .Y );};_gbb :=_d .NewContentCreator ();_gbb .Add_q ();if _bba .FillEnabled {_gbb .Add_rg (_bba .FillColor .R (),_bba .FillColor .G (),_bba .FillColor .B ());};if _bba .BorderEnabled {_gbb .Add_RG (_bba .BorderColor .R (),_bba .BorderColor .G (),_bba .BorderColor .B ());_gbb .Add_w (_bba .BorderWidth );};if len (gsName )> 1{_gbb .Add_gs (_ea .PdfObjectName (gsName ));};DrawPathWithCreator (_cf ,_gbb );_gbb .Add_h ();if _bba .FillEnabled &&_bba .BorderEnabled {_gbb .Add_B ();}else if _bba .FillEnabled {_gbb .Add_f ();}else if _bba .BorderEnabled {_gbb .Add_S ();};_gbb .Add_Q ();return _gbb .Bytes (),_cf .GetBoundingBox ().ToPdfRectangle (),nil ;};
 
 // Draw draws the polygon. A graphics state name can be specified for
 // setting the polygon properties (e.g. setting the opacity). Otherwise leave
 // empty (""). Returns the content stream as a byte array and the polygon
 // bounding box.
-func (_fga Polygon )Draw (gsName string )([]byte ,*_cf .PdfRectangle ,error ){_gca :=_fb .NewContentCreator ();_gca .Add_q ();_fga .FillEnabled =_fga .FillEnabled &&_fga .FillColor !=nil ;if _fga .FillEnabled {_gca .Add_rg (_fga .FillColor .R (),_fga .FillColor .G (),_fga .FillColor .B ());};_fga .BorderEnabled =_fga .BorderEnabled &&_fga .BorderColor !=nil ;if _fga .BorderEnabled {_gca .Add_RG (_fga .BorderColor .R (),_fga .BorderColor .G (),_fga .BorderColor .B ());_gca .Add_w (_fga .BorderWidth );};if len (gsName )> 1{_gca .Add_gs (_a .PdfObjectName (gsName ));};_abd :=NewPath ();for _ ,_gcb :=range _fga .Points {for _cdf ,_efc :=range _gcb {_abd =_abd .AppendPoint (_efc );if _cdf ==0{_gca .Add_m (_efc .X ,_efc .Y );}else {_gca .Add_l (_efc .X ,_efc .Y );};};_gca .Add_h ();};if _fga .FillEnabled &&_fga .BorderEnabled {_gca .Add_B ();}else if _fga .FillEnabled {_gca .Add_f ();}else if _fga .BorderEnabled {_gca .Add_S ();};_gca .Add_Q ();return _gca .Bytes (),_abd .GetBoundingBox ().ToPdfRectangle (),nil ;};
+func (_gcd Polygon )Draw (gsName string )([]byte ,*_a .PdfRectangle ,error ){_efe :=_d .NewContentCreator ();_efe .Add_q ();_gcd .FillEnabled =_gcd .FillEnabled &&_gcd .FillColor !=nil ;if _gcd .FillEnabled {_efe .Add_rg (_gcd .FillColor .R (),_gcd .FillColor .G (),_gcd .FillColor .B ());};_gcd .BorderEnabled =_gcd .BorderEnabled &&_gcd .BorderColor !=nil ;if _gcd .BorderEnabled {_efe .Add_RG (_gcd .BorderColor .R (),_gcd .BorderColor .G (),_gcd .BorderColor .B ());_efe .Add_w (_gcd .BorderWidth );};if len (gsName )> 1{_efe .Add_gs (_ea .PdfObjectName (gsName ));};_acg :=NewPath ();for _ ,_aeb :=range _gcd .Points {for _dbd ,_cge :=range _aeb {_acg =_acg .AppendPoint (_cge );if _dbd ==0{_efe .Add_m (_cge .X ,_cge .Y );}else {_efe .Add_l (_cge .X ,_cge .Y );};};_efe .Add_h ();};if _gcd .FillEnabled &&_gcd .BorderEnabled {_efe .Add_B ();}else if _gcd .FillEnabled {_efe .Add_f ();}else if _gcd .BorderEnabled {_efe .Add_S ();};_efe .Add_Q ();return _efe .Bytes (),_acg .GetBoundingBox ().ToPdfRectangle (),nil ;};
 
-// Draw draws the composite Bezier curve. A graphics state name can be
-// specified for setting the curve properties (e.g. setting the opacity).
-// Otherwise leave empty (""). Returns the content stream as a byte array and
-// the curve bounding box.
-func (_dfg PolyBezierCurve )Draw (gsName string )([]byte ,*_cf .PdfRectangle ,error ){if _dfg .BorderColor ==nil {_dfg .BorderColor =_cf .NewPdfColorDeviceRGB (0,0,0);};_eab :=NewCubicBezierPath ();for _ ,_dee :=range _dfg .Curves {_eab =_eab .AppendCurve (_dee );};_ab :=_fb .NewContentCreator ();_ab .Add_q ();_dfg .FillEnabled =_dfg .FillEnabled &&_dfg .FillColor !=nil ;if _dfg .FillEnabled {_ab .Add_rg (_dfg .FillColor .R (),_dfg .FillColor .G (),_dfg .FillColor .B ());};_ab .Add_RG (_dfg .BorderColor .R (),_dfg .BorderColor .G (),_dfg .BorderColor .B ());_ab .Add_w (_dfg .BorderWidth );if len (gsName )> 1{_ab .Add_gs (_a .PdfObjectName (gsName ));};for _ ,_bfb :=range _eab .Curves {_ab .Add_m (_bfb .P0 .X ,_bfb .P0 .Y );_ab .Add_c (_bfb .P1 .X ,_bfb .P1 .Y ,_bfb .P2 .X ,_bfb .P2 .Y ,_bfb .P3 .X ,_bfb .P3 .Y );};if _dfg .FillEnabled {_ab .Add_h ();_ab .Add_B ();}else {_ab .Add_S ();};_ab .Add_Q ();return _ab .Bytes (),_eab .GetBoundingBox ().ToPdfRectangle (),nil ;};
-
-// LineStyle refers to how the line will be created.
-type LineStyle int ;
-
-// AppendPoint adds the specified point to the path.
-func (_cab Path )AppendPoint (point Point )Path {_cab .Points =append (_cab .Points ,point );return _cab };
-
-// Vector represents a two-dimensional vector.
-type Vector struct{Dx float64 ;Dy float64 ;};const (LineStyleSolid LineStyle =0;LineStyleDashed LineStyle =1;);
-
-// FlipX flips the sign of the Dx component of the vector.
-func (_ebbd Vector )FlipX ()Vector {_ebbd .Dx =-_ebbd .Dx ;return _ebbd };
-
-// Flip changes the sign of the vector: -vector.
-func (_gee Vector )Flip ()Vector {_ebe :=_gee .Magnitude ();_ffae :=_gee .GetPolarAngle ();_gee .Dx =_ebe *_ce .Cos (_ffae +_ce .Pi );_gee .Dy =_ebe *_ce .Sin (_ffae +_ce .Pi );return _gee ;};
-
-// GetBoundingBox returns the bounding box of the path.
-func (_cgb Path )GetBoundingBox ()BoundingBox {_ef :=BoundingBox {};_gf :=0.0;_caf :=0.0;_bd :=0.0;_ed :=0.0;for _ffa ,_fa :=range _cgb .Points {if _ffa ==0{_gf =_fa .X ;_caf =_fa .X ;_bd =_fa .Y ;_ed =_fa .Y ;continue ;};if _fa .X < _gf {_gf =_fa .X ;};if _fa .X > _caf {_caf =_fa .X ;};if _fa .Y < _bd {_bd =_fa .Y ;};if _fa .Y > _ed {_ed =_fa .Y ;};};_ef .X =_gf ;_ef .Y =_bd ;_ef .Width =_caf -_gf ;_ef .Height =_ed -_bd ;return _ef ;};
-
-// Point represents a two-dimensional point.
-type Point struct{X float64 ;Y float64 ;};
-
-// Rotate returns a new Point at `p` rotated by `theta` degrees.
-func (_cdc Point )Rotate (theta float64 )Point {_fc :=_d .NewPoint (_cdc .X ,_cdc .Y ).Rotate (theta );return NewPoint (_fc .X ,_fc .Y );};
-
-// AppendCurve appends the specified Bezier curve to the path.
-func (_fg CubicBezierPath )AppendCurve (curve CubicBezierCurve )CubicBezierPath {_fg .Curves =append (_fg .Curves ,curve );return _fg ;};
-
-// GetBoundingBox returns the bounding box of the Bezier path.
-func (_fbc CubicBezierPath )GetBoundingBox ()Rectangle {_bb :=Rectangle {};_cg :=0.0;_eb :=0.0;_gb :=0.0;_ac :=0.0;for _cea ,_da :=range _fbc .Curves {_gbb :=_da .GetBounds ();if _cea ==0{_cg =_gbb .Llx ;_eb =_gbb .Urx ;_gb =_gbb .Lly ;_ac =_gbb .Ury ;continue ;};if _gbb .Llx < _cg {_cg =_gbb .Llx ;};if _gbb .Urx > _eb {_eb =_gbb .Urx ;};if _gbb .Lly < _gb {_gb =_gbb .Lly ;};if _gbb .Ury > _ac {_ac =_gbb .Ury ;};};_bb .X =_cg ;_bb .Y =_gb ;_bb .Width =_eb -_cg ;_bb .Height =_ac -_gb ;return _bb ;};
+// BasicLine defines a line between point 1 (X1,Y1) and point 2 (X2,Y2). The line has a specified width, color and opacity.
+type BasicLine struct{X1 float64 ;Y1 float64 ;X2 float64 ;Y2 float64 ;LineColor *_a .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineStyle LineStyle ;};

core/security/crypt/crypt.go

@@ -9,68 +9,29 @@
 // Use of this source code is governed by the UniDoc End User License Agreement
 // terms that can be accessed at https://unidoc.io/eula/
 
-package crypt ;import (_d "crypto/aes";_ed "crypto/cipher";_b "crypto/md5";_dc "crypto/rand";_fd "crypto/rc4";_a "fmt";_fb "github.com/unidoc/unipdf/v3/common";_ec "github.com/unidoc/unipdf/v3/core/security";_f "io";);func init (){_cfa ("\u0041\u0045\u0053V\u0032",_g )};func _fe (_gf FilterDict )(Filter ,error ){if _gf .Length ==256{_fb .Log .Debug ("\u0041\u0045S\u0056\u0033\u0020c\u0072\u0079\u0070\u0074\u0020f\u0069\u006c\u0074\u0065\u0072 l\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072\u0073\u0020\u0074\u006f\u0020\u0062e\u0020i\u006e\u0020\u0062\u0069\u0074\u0073 ra\u0074\u0068\u0065\u0072\u0020\u0074\u0068\u0061\u006e\u0020\u0062\u0079te\u0073 \u002d\u0020\u0061\u0073s\u0075m\u0069n\u0067\u0020b\u0069\u0074s \u0028\u0025\u0064\u0029",_gf .Length );_gf .Length /=8;};if _gf .Length !=0&&_gf .Length !=32{return nil ,_a .Errorf ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0041\u0045\u0053\u0056\u0033\u0020\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074e\u0072\u0020\u006c\u0065\u006eg\u0074\u0068 \u0028\u0025\u0064\u0029",_gf .Length );};return filterAESV3 {},nil ;};
+package crypt ;import (_f "crypto/aes";_ec "crypto/cipher";_ea "crypto/md5";_fe "crypto/rand";_d "crypto/rc4";_e "fmt";_c "github.com/unidoc/unipdf/v3/common";_ff "github.com/unidoc/unipdf/v3/core/security";_b "io";);func init (){_ddb ("\u0041\u0045\u0053V\u0032",_cf )};
+
+// NewFilter creates CryptFilter from a corresponding dictionary.
+func NewFilter (d FilterDict )(Filter ,error ){_cde ,_eg :=_fbf (d .CFM );if _eg !=nil {return nil ,_eg ;};_ffce ,_eg :=_cde (d );if _eg !=nil {return nil ,_eg ;};return _ffce ,nil ;};
+
+// Name implements Filter interface.
+func (filterAESV3 )Name ()string {return "\u0041\u0045\u0053V\u0033"};type filterAES struct{};
 
 // FilterDict represents information from a CryptFilter dictionary.
-type FilterDict struct{CFM string ;AuthEvent _ec .AuthEvent ;Length int ;};
+type FilterDict struct{CFM string ;AuthEvent _ff .AuthEvent ;Length int ;};
 
-// KeyLength implements Filter interface.
-func (filterAESV2 )KeyLength ()int {return 128/8};type filterAESV3 struct{filterAES };
-
-// KeyLength implements Filter interface.
-func (_bba filterV2 )KeyLength ()int {return _bba ._feba };func _db (_eg ,_feb uint32 ,_gdc []byte ,_efe bool )([]byte ,error ){_cgg :=make ([]byte ,len (_gdc )+5);for _ee :=0;_ee < len (_gdc );_ee ++{_cgg [_ee ]=_gdc [_ee ];};for _efg :=0;_efg < 3;_efg ++{_fce :=byte ((_eg >>uint32 (8*_efg ))&0xff);_cgg [_efg +len (_gdc )]=_fce ;};for _gfa :=0;_gfa < 2;_gfa ++{_bcc :=byte ((_feb >>uint32 (8*_gfa ))&0xff);_cgg [_gfa +len (_gdc )+3]=_bcc ;};if _efe {_cgg =append (_cgg ,0x73);_cgg =append (_cgg ,0x41);_cgg =append (_cgg ,0x6C);_cgg =append (_cgg ,0x54);};_egb :=_b .New ();_egb .Write (_cgg );_gff :=_egb .Sum (nil );if len (_gdc )+5< 16{return _gff [0:len (_gdc )+5],nil ;};return _gff ,nil ;};func (filterIdentity )MakeKey (objNum ,genNum uint32 ,fkey []byte )([]byte ,error ){return fkey ,nil };
-
-// NewFilterV2 creates a RC4-based filter with a specified key length (in bytes).
-func NewFilterV2 (length int )Filter {_dad ,_ecb :=_ffg (FilterDict {Length :length });if _ecb !=nil {_fb .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020R\u0043\u0034\u0020\u0056\u0032\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_ecb );return filterV2 {_feba :length };};return _dad ;};type filterAES struct{};func init (){_cfa ("\u0041\u0045\u0053V\u0033",_fe )};type filterFunc func (_aac FilterDict )(Filter ,error );func (filterAES )EncryptBytes (buf []byte ,okey []byte )([]byte ,error ){_fc ,_ab :=_d .NewCipher (okey );if _ab !=nil {return nil ,_ab ;};_fb .Log .Trace ("A\u0045\u0053\u0020\u0045nc\u0072y\u0070\u0074\u0020\u0028\u0025d\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );const _c =_d .BlockSize ;_ae :=_c -len (buf )%_c ;for _ff :=0;_ff < _ae ;_ff ++{buf =append (buf ,byte (_ae ));};_fb .Log .Trace ("\u0050a\u0064d\u0065\u0064\u0020\u0074\u006f \u0025\u0064 \u0062\u0079\u0074\u0065\u0073",len (buf ));_cg :=make ([]byte ,_c +len (buf ));_gd :=_cg [:_c ];if _ ,_eda :=_f .ReadFull (_dc .Reader ,_gd );_eda !=nil {return nil ,_eda ;};_bg :=_ed .NewCBCEncrypter (_fc ,_gd );_bg .CryptBlocks (_cg [_c :],buf );buf =_cg ;_fb .Log .Trace ("\u0074\u006f\u0020(\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );return buf ,nil ;};
-
-// Name implements Filter interface.
-func (filterV2 )Name ()string {return "\u0056\u0032"};
-
-// NewFilterAESV3 creates an AES-based filter with a 256 bit key (AESV3).
-func NewFilterAESV3 ()Filter {_ba ,_bd :=_fe (FilterDict {});if _bd !=nil {_fb .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020A\u0045\u0053\u0020\u0056\u0033\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_bd );return filterAESV3 {};};return _ba ;};
-
-// Name implements Filter interface.
-func (filterAESV3 )Name ()string {return "\u0041\u0045\u0053V\u0033"};func (filterIdentity )KeyLength ()int {return 0};
-
-// PDFVersion implements Filter interface.
-func (filterAESV2 )PDFVersion ()[2]int {return [2]int {1,5}};func (filterIdentity )HandlerVersion ()(V ,R int ){return ;};var (_gdf =make (map[string ]filterFunc ););type filterAESV2 struct{filterAES };
-
-// NewFilterAESV2 creates an AES-based filter with a 128 bit key (AESV2).
-func NewFilterAESV2 ()Filter {_bf ,_ef :=_g (FilterDict {});if _ef !=nil {_fb .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020A\u0045\u0053\u0020\u0056\u0032\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_ef );return filterAESV2 {};};return _bf ;};var _ Filter =filterAESV3 {};func init (){_cfa ("\u0056\u0032",_ffg )};
-
-// Name implements Filter interface.
-func (filterAESV2 )Name ()string {return "\u0041\u0045\u0053V\u0032"};
+// MakeKey implements Filter interface.
+func (filterAESV2 )MakeKey (objNum ,genNum uint32 ,ekey []byte )([]byte ,error ){return _fb (objNum ,genNum ,ekey ,true );};func _fg (_gb FilterDict )(Filter ,error ){if _gb .Length ==256{_c .Log .Debug ("\u0041\u0045S\u0056\u0033\u0020c\u0072\u0079\u0070\u0074\u0020f\u0069\u006c\u0074\u0065\u0072 l\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072\u0073\u0020\u0074\u006f\u0020\u0062e\u0020i\u006e\u0020\u0062\u0069\u0074\u0073 ra\u0074\u0068\u0065\u0072\u0020\u0074\u0068\u0061\u006e\u0020\u0062\u0079te\u0073 \u002d\u0020\u0061\u0073s\u0075m\u0069n\u0067\u0020b\u0069\u0074s \u0028\u0025\u0064\u0029",_gb .Length );_gb .Length /=8;};if _gb .Length !=0&&_gb .Length !=32{return nil ,_e .Errorf ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0041\u0045\u0053\u0056\u0033\u0020\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074e\u0072\u0020\u006c\u0065\u006eg\u0074\u0068 \u0028\u0025\u0064\u0029",_gb .Length );};return filterAESV3 {},nil ;};
 
 // HandlerVersion implements Filter interface.
-func (filterAESV2 )HandlerVersion ()(V ,R int ){V ,R =4,4;return ;};
+func (filterAESV3 )HandlerVersion ()(V ,R int ){V ,R =5,6;return ;};func _cf (_ab FilterDict )(Filter ,error ){if _ab .Length ==128{_c .Log .Debug ("\u0041\u0045S\u0056\u0032\u0020c\u0072\u0079\u0070\u0074\u0020f\u0069\u006c\u0074\u0065\u0072 l\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072\u0073\u0020\u0074\u006f\u0020\u0062e\u0020i\u006e\u0020\u0062\u0069\u0074\u0073 ra\u0074\u0068\u0065\u0072\u0020\u0074\u0068\u0061\u006e\u0020\u0062\u0079te\u0073 \u002d\u0020\u0061\u0073s\u0075m\u0069n\u0067\u0020b\u0069\u0074s \u0028\u0025\u0064\u0029",_ab .Length );_ab .Length /=8;};if _ab .Length !=0&&_ab .Length !=16{return nil ,_e .Errorf ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0041\u0045\u0053\u0056\u0032\u0020\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074e\u0072\u0020\u006c\u0065\u006eg\u0074\u0068 \u0028\u0025\u0064\u0029",_ab .Length );};return filterAESV2 {},nil ;};
+
+// NewFilterAESV2 creates an AES-based filter with a 128 bit key (AESV2).
+func NewFilterAESV2 ()Filter {_ed ,_a :=_cf (FilterDict {});if _a !=nil {_c .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020A\u0045\u0053\u0020\u0056\u0032\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_a );return filterAESV2 {};};return _ed ;};func init (){_ddb ("\u0041\u0045\u0053V\u0033",_fg )};func _ddb (_da string ,_aac filterFunc ){if _ ,_eb :=_bce [_da ];_eb {panic ("\u0061l\u0072e\u0061\u0064\u0079\u0020\u0072e\u0067\u0069s\u0074\u0065\u0072\u0065\u0064");};_bce [_da ]=_aac ;};
 
 // NewIdentity creates an identity filter that bypasses all data without changes.
 func NewIdentity ()Filter {return filterIdentity {}};
 
-// EncryptBytes implements Filter interface.
-func (filterV2 )EncryptBytes (buf []byte ,okey []byte )([]byte ,error ){_bab ,_add :=_fd .NewCipher (okey );if _add !=nil {return nil ,_add ;};_fb .Log .Trace ("\u0052\u00434\u0020\u0045\u006ec\u0072\u0079\u0070\u0074\u003a\u0020\u0025\u0020\u0078",buf );_bab .XORKeyStream (buf ,buf );_fb .Log .Trace ("\u0074o\u003a\u0020\u0025\u0020\u0078",buf );return buf ,nil ;};func _cfa (_ebe string ,_dcf filterFunc ){if _ ,_ea :=_gdf [_ebe ];_ea {panic ("\u0061l\u0072e\u0061\u0064\u0079\u0020\u0072e\u0067\u0069s\u0074\u0065\u0072\u0065\u0064");};_gdf [_ebe ]=_dcf ;};type filterV2 struct{_feba int };func (filterIdentity )PDFVersion ()[2]int {return [2]int {}};func (filterIdentity )DecryptBytes (p []byte ,okey []byte )([]byte ,error ){return p ,nil };
-
-// KeyLength implements Filter interface.
-func (filterAESV3 )KeyLength ()int {return 256/8};func (filterIdentity )Name ()string {return "\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079"};
-
-// DecryptBytes implements Filter interface.
-func (filterV2 )DecryptBytes (buf []byte ,okey []byte )([]byte ,error ){_bbe ,_fcc :=_fd .NewCipher (okey );if _fcc !=nil {return nil ,_fcc ;};_fb .Log .Trace ("\u0052\u00434\u0020\u0044\u0065c\u0072\u0079\u0070\u0074\u003a\u0020\u0025\u0020\u0078",buf );_bbe .XORKeyStream (buf ,buf );_fb .Log .Trace ("\u0074o\u003a\u0020\u0025\u0020\u0078",buf );return buf ,nil ;};var _ Filter =filterAESV2 {};
-
-// PDFVersion implements Filter interface.
-func (filterAESV3 )PDFVersion ()[2]int {return [2]int {2,0}};func _bde (_ca string )(filterFunc ,error ){_dg :=_gdf [string (_ca )];if _dg ==nil {return nil ,_a .Errorf ("\u0075\u006e\u0073\u0075p\u0070\u006f\u0072\u0074\u0065\u0064\u0020\u0063\u0072\u0079p\u0074 \u0066\u0069\u006c\u0074\u0065\u0072\u003a \u0025\u0071",_ca );};return _dg ,nil ;};
-
-// MakeKey implements Filter interface.
-func (filterAESV2 )MakeKey (objNum ,genNum uint32 ,ekey []byte )([]byte ,error ){return _db (objNum ,genNum ,ekey ,true );};
-
-// NewFilter creates CryptFilter from a corresponding dictionary.
-func NewFilter (d FilterDict )(Filter ,error ){_cf ,_bdg :=_bde (d .CFM );if _bdg !=nil {return nil ,_bdg ;};_aec ,_bdg :=_cf (d );if _bdg !=nil {return nil ,_bdg ;};return _aec ,nil ;};
-
-// MakeKey implements Filter interface.
-func (_ddad filterV2 )MakeKey (objNum ,genNum uint32 ,ekey []byte )([]byte ,error ){return _db (objNum ,genNum ,ekey ,false );};
-
-// HandlerVersion implements Filter interface.
-func (_dda filterV2 )HandlerVersion ()(V ,R int ){V ,R =2,3;return ;};func (filterIdentity )EncryptBytes (p []byte ,okey []byte )([]byte ,error ){return p ,nil };
-
 // Filter is a common interface for crypt filter methods.
 type Filter interface{
 
@@ -88,21 +49,60 @@ HandlerVersion ()(V ,R int );
 
 // MakeKey generates a object encryption key based on file encryption key and object numbers.
 // Used only for legacy filters - AESV3 doesn't change the key for each object.
-MakeKey (_ac ,_ag uint32 ,_fea []byte )([]byte ,error );
+MakeKey (_df ,_cb uint32 ,_fcd []byte )([]byte ,error );
 
 // EncryptBytes encrypts a buffer using object encryption key, as returned by MakeKey.
 // Implementation may reuse a buffer and encrypt data in-place.
-EncryptBytes (_fef []byte ,_abf []byte )([]byte ,error );
+EncryptBytes (_adfd []byte ,_ece []byte )([]byte ,error );
 
 // DecryptBytes decrypts a buffer using object encryption key, as returned by MakeKey.
 // Implementation may reuse a buffer and decrypt data in-place.
-DecryptBytes (_aacb []byte ,_abg []byte )([]byte ,error );};
+DecryptBytes (_dcb []byte ,_ecgg []byte )([]byte ,error );};
+
+// KeyLength implements Filter interface.
+func (filterAESV2 )KeyLength ()int {return 128/8};var _ Filter =filterV2 {};
 
 // PDFVersion implements Filter interface.
-func (_gcf filterV2 )PDFVersion ()[2]int {return [2]int {}};func _ffg (_fff FilterDict )(Filter ,error ){if _fff .Length %8!=0{return nil ,_a .Errorf ("\u0063\u0072\u0079p\u0074\u0020\u0066\u0069\u006c\u0074\u0065\u0072\u0020\u006c\u0065\u006e\u0067\u0074\u0068\u0020\u006e\u006f\u0074\u0020\u006d\u0075\u006c\u0074\u0069\u0070\u006c\u0065\u0020o\u0066\u0020\u0038\u0020\u0028\u0025\u0064\u0029",_fff .Length );};if _fff .Length < 5||_fff .Length > 16{if _fff .Length ==40||_fff .Length ==64||_fff .Length ==128{_fb .Log .Debug ("\u0053\u0054\u0041\u004e\u0044AR\u0044\u0020V\u0049\u004f\u004c\u0041\u0054\u0049\u004f\u004e\u003a\u0020\u0043\u0072\u0079\u0070\u0074\u0020\u004c\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072s\u0020\u0074\u006f \u0062\u0065\u0020\u0069\u006e\u0020\u0062\u0069\u0074\u0073\u0020\u0072\u0061t\u0068\u0065\u0072\u0020\u0074h\u0061\u006e\u0020\u0062\u0079\u0074\u0065\u0073\u0020-\u0020\u0061s\u0073u\u006d\u0069\u006e\u0067\u0020\u0062\u0069t\u0073\u0020\u0028\u0025\u0064\u0029",_fff .Length );_fff .Length /=8;}else {return nil ,_a .Errorf ("\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074\u0065\u0072\u0020\u006c\u0065\u006e\u0067\u0074h\u0020\u006e\u006f\u0074\u0020\u0069\u006e \u0072\u0061\u006e\u0067\u0065\u0020\u0034\u0030\u0020\u002d\u00201\u0032\u0038\u0020\u0062\u0069\u0074\u0020\u0028\u0025\u0064\u0029",_fff .Length );};};return filterV2 {_feba :_fff .Length },nil ;};
+func (filterAESV2 )PDFVersion ()[2]int {return [2]int {1,5}};
 
-// HandlerVersion implements Filter interface.
-func (filterAESV3 )HandlerVersion ()(V ,R int ){V ,R =5,6;return ;};type filterIdentity struct{};
+// KeyLength implements Filter interface.
+func (filterAESV3 )KeyLength ()int {return 256/8};
+
+// NewFilterAESV3 creates an AES-based filter with a 256 bit key (AESV3).
+func NewFilterAESV3 ()Filter {_ad ,_ef :=_fg (FilterDict {});if _ef !=nil {_c .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020A\u0045\u0053\u0020\u0056\u0033\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_ef );return filterAESV3 {};};return _ad ;};
 
 // MakeKey implements Filter interface.
-func (filterAESV3 )MakeKey (_ ,_ uint32 ,ekey []byte )([]byte ,error ){return ekey ,nil };var _ Filter =filterV2 {};func (filterAES )DecryptBytes (buf []byte ,okey []byte )([]byte ,error ){_ecc ,_eb :=_d .NewCipher (okey );if _eb !=nil {return nil ,_eb ;};if len (buf )< 16{_fb .Log .Debug ("\u0045R\u0052\u004f\u0052\u0020\u0041\u0045\u0053\u0020\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0062\u0075\u0066\u0020\u0025\u0073",buf );return buf ,_a .Errorf ("\u0041\u0045\u0053\u003a B\u0075\u0066\u0020\u006c\u0065\u006e\u0020\u003c\u0020\u0031\u0036\u0020\u0028\u0025d\u0029",len (buf ));};_da :=buf [:16];buf =buf [16:];if len (buf )%16!=0{_fb .Log .Debug ("\u0020\u0069\u0076\u0020\u0028\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (_da ),_da );_fb .Log .Debug ("\u0062\u0075\u0066\u0020\u0028\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );return buf ,_a .Errorf ("\u0041\u0045\u0053\u0020\u0062\u0075\u0066\u0020\u006c\u0065\u006e\u0067\u0074\u0068\u0020\u006e\u006f\u0074\u0020\u006d\u0075\u006c\u0074\u0069p\u006c\u0065\u0020\u006f\u0066 \u0031\u0036 \u0028\u0025\u0064\u0029",len (buf ));};_gc :=_ed .NewCBCDecrypter (_ecc ,_da );_fb .Log .Trace ("A\u0045\u0053\u0020\u0044ec\u0072y\u0070\u0074\u0020\u0028\u0025d\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );_fb .Log .Trace ("\u0063\u0068\u006f\u0070\u0020\u0041\u0045\u0053\u0020\u0044\u0065c\u0072\u0079\u0070\u0074\u0020\u0028\u0025\u0064\u0029\u003a \u0025\u0020\u0078",len (buf ),buf );_gc .CryptBlocks (buf ,buf );_fb .Log .Trace ("\u0074\u006f\u0020(\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );if len (buf )==0{_fb .Log .Trace ("\u0045\u006d\u0070\u0074\u0079\u0020b\u0075\u0066\u002c\u0020\u0072\u0065\u0074\u0075\u0072\u006e\u0069\u006e\u0067 \u0065\u006d\u0070\u0074\u0079\u0020\u0073t\u0072\u0069\u006e\u0067");return buf ,nil ;};_ad :=int (buf [len (buf )-1]);if _ad > len (buf ){_fb .Log .Debug ("\u0049\u006c\u006c\u0065g\u0061\u006c\u0020\u0070\u0061\u0064\u0020\u006c\u0065\u006eg\u0074h\u0020\u0028\u0025\u0064\u0020\u003e\u0020%\u0064\u0029",_ad ,len (buf ));return buf ,_a .Errorf ("\u0069n\u0076a\u006c\u0069\u0064\u0020\u0070a\u0064\u0020l\u0065\u006e\u0067\u0074\u0068");};buf =buf [:len (buf )-_ad ];return buf ,nil ;};func _g (_bb FilterDict )(Filter ,error ){if _bb .Length ==128{_fb .Log .Debug ("\u0041\u0045S\u0056\u0032\u0020c\u0072\u0079\u0070\u0074\u0020f\u0069\u006c\u0074\u0065\u0072 l\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072\u0073\u0020\u0074\u006f\u0020\u0062e\u0020i\u006e\u0020\u0062\u0069\u0074\u0073 ra\u0074\u0068\u0065\u0072\u0020\u0074\u0068\u0061\u006e\u0020\u0062\u0079te\u0073 \u002d\u0020\u0061\u0073s\u0075m\u0069n\u0067\u0020b\u0069\u0074s \u0028\u0025\u0064\u0029",_bb .Length );_bb .Length /=8;};if _bb .Length !=0&&_bb .Length !=16{return nil ,_a .Errorf ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0041\u0045\u0053\u0056\u0032\u0020\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074e\u0072\u0020\u006c\u0065\u006eg\u0074\u0068 \u0028\u0025\u0064\u0029",_bb .Length );};return filterAESV2 {},nil ;};
+func (filterAESV3 )MakeKey (_ ,_ uint32 ,ekey []byte )([]byte ,error ){return ekey ,nil };func _fb (_ffc ,_bd uint32 ,_fa []byte ,_ae bool )([]byte ,error ){_dc :=make ([]byte ,len (_fa )+5);for _aee :=0;_aee < len (_fa );_aee ++{_dc [_aee ]=_fa [_aee ];};for _bga :=0;_bga < 3;_bga ++{_feg :=byte ((_ffc >>uint32 (8*_bga ))&0xff);_dc [_bga +len (_fa )]=_feg ;};for _fee :=0;_fee < 2;_fee ++{_gc :=byte ((_bd >>uint32 (8*_fee ))&0xff);_dc [_fee +len (_fa )+3]=_gc ;};if _ae {_dc =append (_dc ,0x73);_dc =append (_dc ,0x41);_dc =append (_dc ,0x6C);_dc =append (_dc ,0x54);};_dba :=_ea .New ();_dba .Write (_dc );_ffd :=_dba .Sum (nil );if len (_fa )+5< 16{return _ffd [0:len (_fa )+5],nil ;};return _ffd ,nil ;};func (filterIdentity )MakeKey (objNum ,genNum uint32 ,fkey []byte )([]byte ,error ){return fkey ,nil };
+
+// HandlerVersion implements Filter interface.
+func (_adf filterV2 )HandlerVersion ()(V ,R int ){V ,R =2,3;return ;};func init (){_ddb ("\u0056\u0032",_eab )};func (filterIdentity )EncryptBytes (p []byte ,okey []byte )([]byte ,error ){return p ,nil };func (filterAES )EncryptBytes (buf []byte ,okey []byte )([]byte ,error ){_ccc ,_ccd :=_f .NewCipher (okey );if _ccd !=nil {return nil ,_ccd ;};_c .Log .Trace ("A\u0045\u0053\u0020\u0045nc\u0072y\u0070\u0074\u0020\u0028\u0025d\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );const _bc =_f .BlockSize ;_gf :=_bc -len (buf )%_bc ;for _cd :=0;_cd < _gf ;_cd ++{buf =append (buf ,byte (_gf ));};_c .Log .Trace ("\u0050a\u0064d\u0065\u0064\u0020\u0074\u006f \u0025\u0064 \u0062\u0079\u0074\u0065\u0073",len (buf ));_ac :=make ([]byte ,_bc +len (buf ));_adg :=_ac [:_bc ];if _ ,_adge :=_b .ReadFull (_fe .Reader ,_adg );_adge !=nil {return nil ,_adge ;};_aa :=_ec .NewCBCEncrypter (_ccc ,_adg );_aa .CryptBlocks (_ac [_bc :],buf );buf =_ac ;_c .Log .Trace ("\u0074\u006f\u0020(\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );return buf ,nil ;};
+
+// Name implements Filter interface.
+func (filterV2 )Name ()string {return "\u0056\u0032"};var (_bce =make (map[string ]filterFunc ););func (filterIdentity )DecryptBytes (p []byte ,okey []byte )([]byte ,error ){return p ,nil };
+
+// DecryptBytes implements Filter interface.
+func (filterV2 )DecryptBytes (buf []byte ,okey []byte )([]byte ,error ){_cdg ,_ag :=_d .NewCipher (okey );if _ag !=nil {return nil ,_ag ;};_c .Log .Trace ("\u0052\u00434\u0020\u0044\u0065c\u0072\u0079\u0070\u0074\u003a\u0020\u0025\u0020\u0078",buf );_cdg .XORKeyStream (buf ,buf );_c .Log .Trace ("\u0074o\u003a\u0020\u0025\u0020\u0078",buf );return buf ,nil ;};
+
+// PDFVersion implements Filter interface.
+func (_aea filterV2 )PDFVersion ()[2]int {return [2]int {}};
+
+// PDFVersion implements Filter interface.
+func (filterAESV3 )PDFVersion ()[2]int {return [2]int {2,0}};
+
+// HandlerVersion implements Filter interface.
+func (filterAESV2 )HandlerVersion ()(V ,R int ){V ,R =4,4;return ;};var _ Filter =filterAESV3 {};func _fbf (_daa string )(filterFunc ,error ){_ebe :=_bce [_daa ];if _ebe ==nil {return nil ,_e .Errorf ("\u0075\u006e\u0073\u0075p\u0070\u006f\u0072\u0074\u0065\u0064\u0020\u0063\u0072\u0079p\u0074 \u0066\u0069\u006c\u0074\u0065\u0072\u003a \u0025\u0071",_daa );};return _ebe ,nil ;};var _ Filter =filterAESV2 {};type filterAESV3 struct{filterAES };
+
+// Name implements Filter interface.
+func (filterAESV2 )Name ()string {return "\u0041\u0045\u0053V\u0032"};
+
+// EncryptBytes implements Filter interface.
+func (filterV2 )EncryptBytes (buf []byte ,okey []byte )([]byte ,error ){_ecb ,_ee :=_d .NewCipher (okey );if _ee !=nil {return nil ,_ee ;};_c .Log .Trace ("\u0052\u00434\u0020\u0045\u006ec\u0072\u0079\u0070\u0074\u003a\u0020\u0025\u0020\u0078",buf );_ecb .XORKeyStream (buf ,buf );_c .Log .Trace ("\u0074o\u003a\u0020\u0025\u0020\u0078",buf );return buf ,nil ;};
+
+// MakeKey implements Filter interface.
+func (_bcg filterV2 )MakeKey (objNum ,genNum uint32 ,ekey []byte )([]byte ,error ){return _fb (objNum ,genNum ,ekey ,false );};
+
+// NewFilterV2 creates a RC4-based filter with a specified key length (in bytes).
+func NewFilterV2 (length int )Filter {_fc ,_dd :=_eab (FilterDict {Length :length });if _dd !=nil {_c .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020R\u0043\u0034\u0020\u0056\u0032\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_dd );return filterV2 {_fcb :length };};return _fc ;};type filterV2 struct{_fcb int };type filterIdentity struct{};func (filterIdentity )PDFVersion ()[2]int {return [2]int {}};type filterAESV2 struct{filterAES };func (filterIdentity )Name ()string {return "\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079"};func (filterIdentity )KeyLength ()int {return 0};
+
+// KeyLength implements Filter interface.
+func (_ade filterV2 )KeyLength ()int {return _ade ._fcb };func (filterAES )DecryptBytes (buf []byte ,okey []byte )([]byte ,error ){_ca ,_ga :=_f .NewCipher (okey );if _ga !=nil {return nil ,_ga ;};if len (buf )< 16{_c .Log .Debug ("\u0045R\u0052\u004f\u0052\u0020\u0041\u0045\u0053\u0020\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0062\u0075\u0066\u0020\u0025\u0073",buf );return buf ,_e .Errorf ("\u0041\u0045\u0053\u003a B\u0075\u0066\u0020\u006c\u0065\u006e\u0020\u003c\u0020\u0031\u0036\u0020\u0028\u0025d\u0029",len (buf ));};_ecg :=buf [:16];buf =buf [16:];if len (buf )%16!=0{_c .Log .Debug ("\u0020\u0069\u0076\u0020\u0028\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (_ecg ),_ecg );_c .Log .Debug ("\u0062\u0075\u0066\u0020\u0028\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );return buf ,_e .Errorf ("\u0041\u0045\u0053\u0020\u0062\u0075\u0066\u0020\u006c\u0065\u006e\u0067\u0074\u0068\u0020\u006e\u006f\u0074\u0020\u006d\u0075\u006c\u0074\u0069p\u006c\u0065\u0020\u006f\u0066 \u0031\u0036 \u0028\u0025\u0064\u0029",len (buf ));};_bg :=_ec .NewCBCDecrypter (_ca ,_ecg );_c .Log .Trace ("A\u0045\u0053\u0020\u0044ec\u0072y\u0070\u0074\u0020\u0028\u0025d\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );_c .Log .Trace ("\u0063\u0068\u006f\u0070\u0020\u0041\u0045\u0053\u0020\u0044\u0065c\u0072\u0079\u0070\u0074\u0020\u0028\u0025\u0064\u0029\u003a \u0025\u0020\u0078",len (buf ),buf );_bg .CryptBlocks (buf ,buf );_c .Log .Trace ("\u0074\u006f\u0020(\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );if len (buf )==0{_c .Log .Trace ("\u0045\u006d\u0070\u0074\u0079\u0020b\u0075\u0066\u002c\u0020\u0072\u0065\u0074\u0075\u0072\u006e\u0069\u006e\u0067 \u0065\u006d\u0070\u0074\u0079\u0020\u0073t\u0072\u0069\u006e\u0067");return buf ,nil ;};_ceb :=int (buf [len (buf )-1]);if _ceb > len (buf ){_c .Log .Debug ("\u0049\u006c\u006c\u0065g\u0061\u006c\u0020\u0070\u0061\u0064\u0020\u006c\u0065\u006eg\u0074h\u0020\u0028\u0025\u0064\u0020\u003e\u0020%\u0064\u0029",_ceb ,len (buf ));return buf ,_e .Errorf ("\u0069n\u0076a\u006c\u0069\u0064\u0020\u0070a\u0064\u0020l\u0065\u006e\u0067\u0074\u0068");};buf =buf [:len (buf )-_ceb ];return buf ,nil ;};type filterFunc func (_gfg FilterDict )(Filter ,error );func _eab (_adb FilterDict )(Filter ,error ){if _adb .Length %8!=0{return nil ,_e .Errorf ("\u0063\u0072\u0079p\u0074\u0020\u0066\u0069\u006c\u0074\u0065\u0072\u0020\u006c\u0065\u006e\u0067\u0074\u0068\u0020\u006e\u006f\u0074\u0020\u006d\u0075\u006c\u0074\u0069\u0070\u006c\u0065\u0020o\u0066\u0020\u0038\u0020\u0028\u0025\u0064\u0029",_adb .Length );};if _adb .Length < 5||_adb .Length > 16{if _adb .Length ==40||_adb .Length ==64||_adb .Length ==128{_c .Log .Debug ("\u0053\u0054\u0041\u004e\u0044AR\u0044\u0020V\u0049\u004f\u004c\u0041\u0054\u0049\u004f\u004e\u003a\u0020\u0043\u0072\u0079\u0070\u0074\u0020\u004c\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072s\u0020\u0074\u006f \u0062\u0065\u0020\u0069\u006e\u0020\u0062\u0069\u0074\u0073\u0020\u0072\u0061t\u0068\u0065\u0072\u0020\u0074h\u0061\u006e\u0020\u0062\u0079\u0074\u0065\u0073\u0020-\u0020\u0061s\u0073u\u006d\u0069\u006e\u0067\u0020\u0062\u0069t\u0073\u0020\u0028\u0025\u0064\u0029",_adb .Length );_adb .Length /=8;}else {return nil ,_e .Errorf ("\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074\u0065\u0072\u0020\u006c\u0065\u006e\u0067\u0074h\u0020\u006e\u006f\u0074\u0020\u0069\u006e \u0072\u0061\u006e\u0067\u0065\u0020\u0034\u0030\u0020\u002d\u00201\u0032\u0038\u0020\u0062\u0069\u0074\u0020\u0028\u0025\u0064\u0029",_adb .Length );};};return filterV2 {_fcb :_adb .Length },nil ;};func (filterIdentity )HandlerVersion ()(V ,R int ){return ;};

fjson/fjson.go

@@ -10,28 +10,28 @@
 // terms that can be accessed at https://unidoc.io/eula/
 
 // Package fjson provides support for loading PDF form field data from JSON data/files.
-package fjson ;import (_f "encoding/json";_ge "github.com/unidoc/unipdf/v3/core";_geg "github.com/unidoc/unipdf/v3/model";_g "io";_c "os";);
+package fjson ;import (_e "encoding/json";_da "github.com/unidoc/unipdf/v3/core";_ad "github.com/unidoc/unipdf/v3/model";_a "io";_dc "os";);
 
 // LoadFromJSONFile loads form field data from a JSON file.
-func LoadFromJSONFile (filePath string )(*FieldData ,error ){_gd ,_fb :=_c .Open (filePath );if _fb !=nil {return nil ,_fb ;};defer _gd .Close ();return LoadFromJSON (_gd );};
+func LoadFromJSONFile (filePath string )(*FieldData ,error ){_f ,_fb :=_dc .Open (filePath );if _fb !=nil {return nil ,_fb ;};defer _f .Close ();return LoadFromJSON (_f );};
 
 // LoadFromPDFFile loads form field data from a PDF file.
-func LoadFromPDFFile (filePath string )(*FieldData ,error ){_fd ,_gdb :=_c .Open (filePath );if _gdb !=nil {return nil ,_gdb ;};defer _fd .Close ();return LoadFromPDF (_fd );};
-
-// JSON returns the field data as a string in JSON format.
-func (_gb FieldData )JSON ()(string ,error ){_eaf ,_dce :=_f .MarshalIndent (_gb ._a ,"","\u0020\u0020\u0020\u0020");return string (_eaf ),_dce ;};
-
-// LoadFromPDF loads form field data from a PDF.
-func LoadFromPDF (rs _g .ReadSeeker )(*FieldData ,error ){_ca ,_cf :=_geg .NewPdfReader (rs );if _cf !=nil {return nil ,_cf ;};if _ca .AcroForm ==nil {return nil ,nil ;};var _b []fieldValue ;_ad :=_ca .AcroForm .AllFields ();for _ ,_be :=range _ad {var _ed []string ;_ec :=make (map[string ]struct{});_ae ,_aeg :=_be .FullName ();if _aeg !=nil {return nil ,_aeg ;};if _ef ,_cg :=_be .V .(*_ge .PdfObjectString );_cg {_b =append (_b ,fieldValue {Name :_ae ,Value :_ef .Decoded ()});continue ;};var _gg string ;for _ ,_fbb :=range _be .Annotations {_ga ,_eaa :=_ge .GetName (_fbb .AS );if _eaa {_gg =_ga .String ();};_d ,_ggg :=_ge .GetDict (_fbb .AP );if !_ggg {continue ;};_de ,_ :=_ge .GetDict (_d .Get ("\u004e"));for _ ,_eg :=range _de .Keys (){_dc :=_eg .String ();if _ ,_bg :=_ec [_dc ];!_bg {_ed =append (_ed ,_dc );_ec [_dc ]=struct{}{};};};_gag ,_ :=_ge .GetDict (_d .Get ("\u0044"));for _ ,_gggd :=range _gag .Keys (){_bbf :=_gggd .String ();if _ ,_abg :=_ec [_bbf ];!_abg {_ed =append (_ed ,_bbf );_ec [_bbf ]=struct{}{};};};};_adb :=fieldValue {Name :_ae ,Value :_gg ,Options :_ed };_b =append (_b ,_adb );};_ee :=FieldData {_a :_b };return &_ee ,nil ;};
+func LoadFromPDFFile (filePath string )(*FieldData ,error ){_ab ,_dbf :=_dc .Open (filePath );if _dbf !=nil {return nil ,_dbf ;};defer _ab .Close ();return LoadFromPDF (_ab );};
 
 // LoadFromJSON loads JSON form data from `r`.
-func LoadFromJSON (r _g .Reader )(*FieldData ,error ){var _ea FieldData ;_ab :=_f .NewDecoder (r ).Decode (&_ea ._a );if _ab !=nil {return nil ,_ab ;};return &_ea ,nil ;};
+func LoadFromJSON (r _a .Reader )(*FieldData ,error ){var _b FieldData ;_c :=_e .NewDecoder (r ).Decode (&_b ._af );if _c !=nil {return nil ,_c ;};return &_b ,nil ;};
 
-// FieldValues implements model.FieldValueProvider interface.
-func (_abgg *FieldData )FieldValues ()(map[string ]_ge .PdfObject ,error ){_ggc :=make (map[string ]_ge .PdfObject );for _ ,_ac :=range _abgg ._a {if len (_ac .Value )> 0{_ggc [_ac .Name ]=_ge .MakeString (_ac .Value );};};return _ggc ,nil ;};type fieldValue struct{Name string `json:"name"`;Value string `json:"value"`;
+// FieldData represents form field data loaded from JSON file.
+type FieldData struct{_af []fieldValue };type fieldValue struct{Name string `json:"name"`;Value string `json:"value"`;
 
 // Options lists allowed values if present.
 Options []string `json:"options,omitempty"`;};
 
-// FieldData represents form field data loaded from JSON file.
-type FieldData struct{_a []fieldValue };
+// FieldValues implements model.FieldValueProvider interface.
+func (_gb *FieldData )FieldValues ()(map[string ]_da .PdfObject ,error ){_abb :=make (map[string ]_da .PdfObject );for _ ,_dec :=range _gb ._af {if len (_dec .Value )> 0{_abb [_dec .Name ]=_da .MakeString (_dec .Value );};};return _abb ,nil ;};
+
+// LoadFromPDF loads form field data from a PDF.
+func LoadFromPDF (rs _a .ReadSeeker )(*FieldData ,error ){_ec ,_bf :=_ad .NewPdfReader (rs );if _bf !=nil {return nil ,_bf ;};if _ec .AcroForm ==nil {return nil ,nil ;};var _ca []fieldValue ;_fba :=_ec .AcroForm .AllFields ();for _ ,_cg :=range _fba {var _afa []string ;_fc :=make (map[string ]struct{});_g ,_ee :=_cg .FullName ();if _ee !=nil {return nil ,_ee ;};if _de ,_adg :=_cg .V .(*_da .PdfObjectString );_adg {_ca =append (_ca ,fieldValue {Name :_g ,Value :_de .Decoded ()});continue ;};var _fd string ;for _ ,_ef :=range _cg .Annotations {_bd ,_fg :=_da .GetName (_ef .AS );if _fg {_fd =_bd .String ();};_ed ,_bg :=_da .GetDict (_ef .AP );if !_bg {continue ;};_adf ,_ :=_da .GetDict (_ed .Get ("\u004e"));for _ ,_bb :=range _adf .Keys (){_caa :=_bb .String ();if _ ,_dga :=_fc [_caa ];!_dga {_afa =append (_afa ,_caa );_fc [_caa ]=struct{}{};};};_fdc ,_ :=_da .GetDict (_ed .Get ("\u0044"));for _ ,_ga :=range _fdc .Keys (){_eg :=_ga .String ();if _ ,_ae :=_fc [_eg ];!_ae {_afa =append (_afa ,_eg );_fc [_eg ]=struct{}{};};};};_gg :=fieldValue {Name :_g ,Value :_fd ,Options :_afa };_ca =append (_ca ,_gg );};_ac :=FieldData {_af :_ca };return &_ac ,nil ;};
+
+// JSON returns the field data as a string in JSON format.
+func (_aa FieldData )JSON ()(string ,error ){_ege ,_be :=_e .MarshalIndent (_aa ._af ,"","\u0020\u0020\u0020\u0020");return string (_ege ),_be ;};

go.sum

@@ -20,11 +20,13 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/unidoc/pkcs7 v0.0.0-20200411230602-d883fd70d1df h1:1RV3lxQ6L6xGFNhngpP9iMjJPSwvH3p17JNbK9u5274=
 github.com/unidoc/pkcs7 v0.0.0-20200411230602-d883fd70d1df/go.mod h1:UEzOZUEpJfDpywVJMUT8QiugqEZC29pDq7kdIZhWCr8=
 github.com/unidoc/timestamp v0.0.0-20200412005513-91597fd3793a/go.mod h1:j+qMWZVpZFTvDey3zxUkSgPJZEX33tDgU/QIA0IzCUw=
 github.com/unidoc/unitype v0.2.1 h1:x0jMn7pB/tNrjEVjy3Ukpxo++HOBQaTCXcTYFA6BH3w=
 github.com/unidoc/unitype v0.2.1/go.mod h1:mafyug7zYmDOusqa7G0dJV45qp4b6TDAN+pHN7ZUIBU=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0 h1:hb9wdF1z5waM+dSIICn1l0DkLVDT3hqhhQsDNUmHPRE=
 golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/image v0.0.0-20200927104501-e162460cd6b5 h1:QelT11PB4FXiDEXucrfNckHoFxwt8USGY1ajP1ZF5lM=
 golang.org/x/image v0.0.0-20200927104501-e162460cd6b5/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=

internal/endian/endian.go

@@ -9,4 +9,4 @@
 // Use of this source code is governed by the UniDoc End User License Agreement
 // terms that can be accessed at https://unidoc.io/eula/
 
-package endian ;import (_e "encoding/binary";_bb "unsafe";);func IsBig ()bool {return _g };func init (){const _d =int (_bb .Sizeof (0));_c :=1;_dg :=(*[_d ]byte )(_bb .Pointer (&_c ));if _dg [0]==0{_g =true ;ByteOrder =_e .BigEndian ;}else {ByteOrder =_e .LittleEndian ;};};func IsLittle ()bool {return !_g };var (ByteOrder _e .ByteOrder ;_g bool ;);
+package endian ;import (_b "encoding/binary";_bf "unsafe";);func IsBig ()bool {return _g };func init (){const _gb =int (_bf .Sizeof (0));_ed :=1;_f :=(*[_gb ]byte )(_bf .Pointer (&_ed ));if _f [0]==0{_g =true ;ByteOrder =_b .BigEndian ;}else {ByteOrder =_b .LittleEndian ;};};func IsLittle ()bool {return !_g };var (ByteOrder _b .ByteOrder ;_g bool ;);

internal/jbig2/basic/basic.go

@@ -9,4 +9,4 @@
 // Use of this source code is governed by the UniDoc End User License Agreement
 // terms that can be accessed at https://unidoc.io/eula/
 
-package basic ;import _b "github.com/unidoc/unipdf/v3/internal/jbig2/errors";func NewIntSlice (i int )*IntSlice {_ca :=IntSlice (make ([]int ,i ));return &_ca };func (_ac *Stack )Pop ()(_fed interface{},_bf bool ){_fed ,_bf =_ac .peek ();if !_bf {return nil ,_bf ;};_ac .Data =_ac .Data [:_ac .top ()];return _fed ,true ;};func (_ce *Stack )peek ()(interface{},bool ){_ddb :=_ce .top ();if _ddb ==-1{return nil ,false ;};return _ce .Data [_ddb ],true ;};func (_fea *IntSlice )Copy ()*IntSlice {_e :=IntSlice (make ([]int ,len (*_fea )));copy (_e ,*_fea );return &_e ;};func NewNumSlice (i int )*NumSlice {_gc :=NumSlice (make ([]float32 ,i ));return &_gc };func (_bg *NumSlice )Add (v float32 ){*_bg =append (*_bg ,v )};func Min (x ,y int )int {if x < y {return x ;};return y ;};func (_ag IntSlice )Size ()int {return len (_ag )};type Stack struct{Data []interface{};Aux *Stack ;};func (_dg *Stack )top ()int {return len (_dg .Data )-1};type NumSlice []float32 ;type IntsMap map[uint64 ][]int ;func (_ggd NumSlice )GetInt (i int )(int ,error ){const _be ="\u0047\u0065\u0074\u0049\u006e\u0074";if i < 0||i > len (_ggd )-1{return 0,_b .Errorf (_be ,"\u0069n\u0064\u0065\u0078\u003a\u0020\u0027\u0025\u0064\u0027\u0020\u006fu\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006e\u0067\u0065",i );};_ddg :=_ggd [i ];return int (_ddg +Sign (_ddg )*0.5),nil ;};func Max (x ,y int )int {if x > y {return x ;};return y ;};func (_a IntsMap )Add (key uint64 ,value int ){_a [key ]=append (_a [key ],value )};type IntSlice []int ;func (_aa NumSlice )GetIntSlice ()[]int {_ab :=make ([]int ,len (_aa ));for _ff ,_cd :=range _aa {_ab [_ff ]=int (_cd );};return _ab ;};func (_dd IntSlice )Get (index int )(int ,error ){if index > len (_dd )-1{return 0,_b .Errorf ("\u0049\u006e\u0074S\u006c\u0069\u0063\u0065\u002e\u0047\u0065\u0074","\u0069\u006e\u0064\u0065x:\u0020\u0025\u0064\u0020\u006f\u0075\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006eg\u0065",index );};return _dd [index ],nil ;};func (_bgf NumSlice )Get (i int )(float32 ,error ){if i < 0||i > len (_bgf )-1{return 0,_b .Errorf ("\u004e\u0075\u006dS\u006c\u0069\u0063\u0065\u002e\u0047\u0065\u0074","\u0069n\u0064\u0065\u0078\u003a\u0020\u0027\u0025\u0064\u0027\u0020\u006fu\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006e\u0067\u0065",i );};return _bgf [i ],nil ;};func (_ebe *Stack )Push (v interface{}){_ebe .Data =append (_ebe .Data ,v )};func Ceil (numerator ,denominator int )int {if numerator %denominator ==0{return numerator /denominator ;};return (numerator /denominator )+1;};func (_ae *IntSlice )Add (v int )error {if _ae ==nil {return _b .Error ("\u0049\u006e\u0074S\u006c\u0069\u0063\u0065\u002e\u0041\u0064\u0064","\u0073\u006c\u0069\u0063\u0065\u0020\u006e\u006f\u0074\u0020\u0064\u0065f\u0069\u006e\u0065\u0064");};*_ae =append (*_ae ,v );return nil ;};func Abs (v int )int {if v > 0{return v ;};return -v ;};func (_c IntsMap )Get (key uint64 )(int ,bool ){_g ,_gg :=_c [key ];if !_gg {return 0,false ;};if len (_g )==0{return 0,false ;};return _g [0],true ;};func (_aae *Stack )Peek ()(_aga interface{},_eb bool ){return _aae .peek ()};func (_fg *Stack )Len ()int {return len (_fg .Data )};func Sign (v float32 )float32 {if v >=0.0{return 1.0;};return -1.0;};func (_cb *NumSlice )AddInt (v int ){*_cb =append (*_cb ,float32 (v ))};func (_fe IntsMap )Delete (key uint64 ){delete (_fe ,key )};func (_d IntsMap )GetSlice (key uint64 )([]int ,bool ){_ad ,_bb :=_d [key ];if !_bb {return nil ,false ;};return _ad ,true ;};
+package basic ;import _f "github.com/unidoc/unipdf/v3/internal/jbig2/errors";func (_ae IntsMap )GetSlice (key uint64 )([]int ,bool ){_e ,_ac :=_ae [key ];if !_ac {return nil ,false ;};return _e ,true ;};func Abs (v int )int {if v > 0{return v ;};return -v ;};func (_cb IntSlice )Get (index int )(int ,error ){if index > len (_cb )-1{return 0,_f .Errorf ("\u0049\u006e\u0074S\u006c\u0069\u0063\u0065\u002e\u0047\u0065\u0074","\u0069\u006e\u0064\u0065x:\u0020\u0025\u0064\u0020\u006f\u0075\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006eg\u0065",index );};return _cb [index ],nil ;};type IntsMap map[uint64 ][]int ;func (_fc NumSlice )Get (i int )(float32 ,error ){if i < 0||i > len (_fc )-1{return 0,_f .Errorf ("\u004e\u0075\u006dS\u006c\u0069\u0063\u0065\u002e\u0047\u0065\u0074","\u0069n\u0064\u0065\u0078\u003a\u0020\u0027\u0025\u0064\u0027\u0020\u006fu\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006e\u0067\u0065",i );};return _fc [i ],nil ;};func NewIntSlice (i int )*IntSlice {_g :=IntSlice (make ([]int ,i ));return &_g };func (_dd *NumSlice )Add (v float32 ){*_dd =append (*_dd ,v )};func (_a IntsMap )Get (key uint64 )(int ,bool ){_b ,_db :=_a [key ];if !_db {return 0,false ;};if len (_b )==0{return 0,false ;};return _b [0],true ;};type IntSlice []int ;func (_fcc *Stack )Pop ()(_gb interface{},_daf bool ){_gb ,_daf =_fcc .peek ();if !_daf {return nil ,_daf ;};_fcc .Data =_fcc .Data [:_fcc .top ()];return _gb ,true ;};type Stack struct{Data []interface{};Aux *Stack ;};func NewNumSlice (i int )*NumSlice {_ge :=NumSlice (make ([]float32 ,i ));return &_ge };func (_bg *Stack )top ()int {return len (_bg .Data )-1};func (_ag *Stack )Len ()int {return len (_ag .Data )};type NumSlice []float32 ;func (_ga *Stack )Peek ()(_bb interface{},_agc bool ){return _ga .peek ()};func (_da NumSlice )GetIntSlice ()[]int {_af :=make ([]int ,len (_da ));for _gg ,_ee :=range _da {_af [_gg ]=int (_ee );};return _af ;};func (_ff IntsMap )Delete (key uint64 ){delete (_ff ,key )};func (_bf *Stack )peek ()(interface{},bool ){_acd :=_bf .top ();if _acd ==-1{return nil ,false ;};return _bf .Data [_acd ],true ;};func Max (x ,y int )int {if x > y {return x ;};return y ;};func (_de NumSlice )GetInt (i int )(int ,error ){const _ba ="\u0047\u0065\u0074\u0049\u006e\u0074";if i < 0||i > len (_de )-1{return 0,_f .Errorf (_ba ,"\u0069n\u0064\u0065\u0078\u003a\u0020\u0027\u0025\u0064\u0027\u0020\u006fu\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006e\u0067\u0065",i );};_cbd :=_de [i ];return int (_cbd +Sign (_cbd )*0.5),nil ;};func (_ddd *NumSlice )AddInt (v int ){*_ddd =append (*_ddd ,float32 (v ))};func (_c IntsMap )Add (key uint64 ,value int ){_c [key ]=append (_c [key ],value )};func (_ab IntSlice )Size ()int {return len (_ab )};func (_ce *Stack )Push (v interface{}){_ce .Data =append (_ce .Data ,v )};func (_cd *IntSlice )Add (v int )error {if _cd ==nil {return _f .Error ("\u0049\u006e\u0074S\u006c\u0069\u0063\u0065\u002e\u0041\u0064\u0064","\u0073\u006c\u0069\u0063\u0065\u0020\u006e\u006f\u0074\u0020\u0064\u0065f\u0069\u006e\u0065\u0064");};*_cd =append (*_cd ,v );return nil ;};func Ceil (numerator ,denominator int )int {if numerator %denominator ==0{return numerator /denominator ;};return (numerator /denominator )+1;};func Sign (v float32 )float32 {if v >=0.0{return 1.0;};return -1.0;};func Min (x ,y int )int {if x < y {return x ;};return y ;};func (_eg *IntSlice )Copy ()*IntSlice {_aef :=IntSlice (make ([]int ,len (*_eg )));copy (_aef ,*_eg );return &_aef ;};

internal/jbig2/decoder/decoder.go

@@ -9,4 +9,4 @@
 // Use of this source code is governed by the UniDoc End User License Agreement
 // terms that can be accessed at https://unidoc.io/eula/
 
-package decoder ;import (_a "github.com/unidoc/unipdf/v3/internal/bitwise";_e "github.com/unidoc/unipdf/v3/internal/jbig2/bitmap";_b "github.com/unidoc/unipdf/v3/internal/jbig2/document";_g "github.com/unidoc/unipdf/v3/internal/jbig2/errors";_d "image";);func (_cd *Decoder )decodePage (_aae int )([]byte ,error ){const _fa ="\u0064\u0065\u0063\u006f\u0064\u0065\u0050\u0061\u0067\u0065";if _aae < 0{return nil ,_g .Errorf (_fa ,"\u0069n\u0076\u0061\u006c\u0069d\u0020\u0070\u0061\u0067\u0065 \u006eu\u006db\u0065\u0072\u003a\u0020\u0027\u0025\u0064'",_aae );};if _aae > int (_cd ._ef .NumberOfPages ){return nil ,_g .Errorf (_fa ,"p\u0061\u0067\u0065\u003a\u0020\u0027%\u0064\u0027\u0020\u006e\u006f\u0074 \u0066\u006f\u0075\u006e\u0064\u0020\u0069n\u0020\u0074\u0068\u0065\u0020\u0064\u0065\u0063\u006f\u0064e\u0072",_aae );};_cca ,_aac :=_cd ._ef .GetPage (_aae );if _aac !=nil {return nil ,_g .Wrap (_aac ,_fa ,"");};_cda ,_aac :=_cca .GetBitmap ();if _aac !=nil {return nil ,_g .Wrap (_aac ,_fa ,"");};_cda .InverseData ();if !_cd ._de .UnpaddedData {return _cda .Data ,nil ;};return _cda .GetUnpaddedData ();};func (_ea *Decoder )DecodePageImage (pageNumber int )(_d .Image ,error ){const _ae ="\u0064\u0065\u0063od\u0065\u0072\u002e\u0044\u0065\u0063\u006f\u0064\u0065\u0050\u0061\u0067\u0065\u0049\u006d\u0061\u0067\u0065";_cbg ,_cf :=_ea .decodePageImage (pageNumber );if _cf !=nil {return nil ,_g .Wrap (_cf ,_ae ,"");};return _cbg ,nil ;};func (_f *Decoder )DecodeNextPage ()([]byte ,error ){_f ._cb ++;_cbb :=_f ._cb ;return _f .decodePage (_cbb );};func (_dg *Decoder )PageNumber ()(int ,error ){const _cc ="\u0044e\u0063o\u0064\u0065\u0072\u002e\u0050a\u0067\u0065N\u0075\u006d\u0062\u0065\u0072";if _dg ._ef ==nil {return 0,_g .Error (_cc ,"d\u0065\u0063\u006f\u0064\u0065\u0072 \u006e\u006f\u0074\u0020\u0069\u006e\u0069\u0074\u0069a\u006c\u0069\u007ae\u0064 \u0079\u0065\u0074");};return int (_dg ._ef .NumberOfPages ),nil ;};type Parameters struct{UnpaddedData bool ;Color _e .Color ;};func (_ed *Decoder )DecodePage (pageNumber int )([]byte ,error ){return _ed .decodePage (pageNumber )};type Decoder struct{_aa _a .StreamReader ;_ef *_b .Document ;_cb int ;_de Parameters ;};func Decode (input []byte ,parameters Parameters ,globals *_b .Globals )(*Decoder ,error ){_ac :=_a .NewReader (input );_ff ,_cbbd :=_b .DecodeDocument (_ac ,globals );if _cbbd !=nil {return nil ,_cbbd ;};return &Decoder {_aa :_ac ,_ef :_ff ,_de :parameters },nil ;};func (_ce *Decoder )decodePageImage (_dd int )(_d .Image ,error ){const _dc ="\u0064e\u0063o\u0064\u0065\u0050\u0061\u0067\u0065\u0049\u006d\u0061\u0067\u0065";if _dd < 0{return nil ,_g .Errorf (_dc ,"\u0069n\u0076\u0061\u006c\u0069d\u0020\u0070\u0061\u0067\u0065 \u006eu\u006db\u0065\u0072\u003a\u0020\u0027\u0025\u0064'",_dd );};if _dd > int (_ce ._ef .NumberOfPages ){return nil ,_g .Errorf (_dc ,"p\u0061\u0067\u0065\u003a\u0020\u0027%\u0064\u0027\u0020\u006e\u006f\u0074 \u0066\u006f\u0075\u006e\u0064\u0020\u0069n\u0020\u0074\u0068\u0065\u0020\u0064\u0065\u0063\u006f\u0064e\u0072",_dd );};_deb ,_ceb :=_ce ._ef .GetPage (_dd );if _ceb !=nil {return nil ,_g .Wrap (_ceb ,_dc ,"");};_cg ,_ceb :=_deb .GetBitmap ();if _ceb !=nil {return nil ,_g .Wrap (_ceb ,_dc ,"");};return _cg .ToImage (),nil ;};
+package decoder ;import (_ce "github.com/unidoc/unipdf/v3/internal/bitwise";_cf "github.com/unidoc/unipdf/v3/internal/jbig2/bitmap";_bd "github.com/unidoc/unipdf/v3/internal/jbig2/document";_b "github.com/unidoc/unipdf/v3/internal/jbig2/errors";_c "image";);type Parameters struct{UnpaddedData bool ;Color _cf .Color ;};func (_ae *Decoder )DecodePageImage (pageNumber int )(_c .Image ,error ){const _cfec ="\u0064\u0065\u0063od\u0065\u0072\u002e\u0044\u0065\u0063\u006f\u0064\u0065\u0050\u0061\u0067\u0065\u0049\u006d\u0061\u0067\u0065";_bf ,_fc :=_ae .decodePageImage (pageNumber );if _fc !=nil {return nil ,_b .Wrap (_fc ,_cfec ,"");};return _bf ,nil ;};func (_d *Decoder )decodePage (_fd int )([]byte ,error ){const _ca ="\u0064\u0065\u0063\u006f\u0064\u0065\u0050\u0061\u0067\u0065";if _fd < 0{return nil ,_b .Errorf (_ca ,"\u0069n\u0076\u0061\u006c\u0069d\u0020\u0070\u0061\u0067\u0065 \u006eu\u006db\u0065\u0072\u003a\u0020\u0027\u0025\u0064'",_fd );};if _fd > int (_d ._bb .NumberOfPages ){return nil ,_b .Errorf (_ca ,"p\u0061\u0067\u0065\u003a\u0020\u0027%\u0064\u0027\u0020\u006e\u006f\u0074 \u0066\u006f\u0075\u006e\u0064\u0020\u0069n\u0020\u0074\u0068\u0065\u0020\u0064\u0065\u0063\u006f\u0064e\u0072",_fd );};_bc ,_ad :=_d ._bb .GetPage (_fd );if _ad !=nil {return nil ,_b .Wrap (_ad ,_ca ,"");};_dd ,_ad :=_bc .GetBitmap ();if _ad !=nil {return nil ,_b .Wrap (_ad ,_ca ,"");};_dd .InverseData ();if !_d ._cfea .UnpaddedData {return _dd .Data ,nil ;};return _dd .GetUnpaddedData ();};func (_ddb *Decoder )decodePageImage (_e int )(_c .Image ,error ){const _aa ="\u0064e\u0063o\u0064\u0065\u0050\u0061\u0067\u0065\u0049\u006d\u0061\u0067\u0065";if _e < 0{return nil ,_b .Errorf (_aa ,"\u0069n\u0076\u0061\u006c\u0069d\u0020\u0070\u0061\u0067\u0065 \u006eu\u006db\u0065\u0072\u003a\u0020\u0027\u0025\u0064'",_e );};if _e > int (_ddb ._bb .NumberOfPages ){return nil ,_b .Errorf (_aa ,"p\u0061\u0067\u0065\u003a\u0020\u0027%\u0064\u0027\u0020\u006e\u006f\u0074 \u0066\u006f\u0075\u006e\u0064\u0020\u0069n\u0020\u0074\u0068\u0065\u0020\u0064\u0065\u0063\u006f\u0064e\u0072",_e );};_bcb ,_db :=_ddb ._bb .GetPage (_e );if _db !=nil {return nil ,_b .Wrap (_db ,_aa ,"");};_de ,_db :=_bcb .GetBitmap ();if _db !=nil {return nil ,_b .Wrap (_db ,_aa ,"");};return _de .ToImage (),nil ;};func (_g *Decoder )PageNumber ()(int ,error ){const _gd ="\u0044e\u0063o\u0064\u0065\u0072\u002e\u0050a\u0067\u0065N\u0075\u006d\u0062\u0065\u0072";if _g ._bb ==nil {return 0,_b .Error (_gd ,"d\u0065\u0063\u006f\u0064\u0065\u0072 \u006e\u006f\u0074\u0020\u0069\u006e\u0069\u0074\u0069a\u006c\u0069\u007ae\u0064 \u0079\u0065\u0074");};return int (_g ._bb .NumberOfPages ),nil ;};type Decoder struct{_f _ce .StreamReader ;_bb *_bd .Document ;_cfe int ;_cfea Parameters ;};func (_fcd *Decoder )DecodeNextPage ()([]byte ,error ){_fcd ._cfe ++;_cb :=_fcd ._cfe ;return _fcd .decodePage (_cb );};func (_af *Decoder )DecodePage (pageNumber int )([]byte ,error ){return _af .decodePage (pageNumber )};func Decode (input []byte ,parameters Parameters ,globals *_bd .Globals )(*Decoder ,error ){_dde :=_ce .NewReader (input );_ef ,_ceg :=_bd .DecodeDocument (_dde ,globals );if _ceg !=nil {return nil ,_ceg ;};return &Decoder {_f :_dde ,_bb :_ef ,_cfea :parameters },nil ;};

internal/jbig2/errors/errors.go

@@ -9,4 +9,4 @@
 // Use of this source code is governed by the UniDoc End User License Agreement
 // terms that can be accessed at https://unidoc.io/eula/
 
-package errors ;import _c "fmt";type processError struct{_d string ;_b string ;_f string ;_bb error ;};func Wrapf (err error ,processName ,message string ,arguments ...interface{})error {if _ga ,_ec :=err .(*processError );_ec {_ga ._d ="";};_gaf :=_e (_c .Sprintf (message ,arguments ...),processName );_gaf ._bb =err ;return _gaf ;};func Errorf (processName ,message string ,arguments ...interface{})error {return _e (_c .Sprintf (message ,arguments ...),processName );};func Wrap (err error ,processName ,message string )error {if _bc ,_ac :=err .(*processError );_ac {_bc ._d ="";};_ce :=_e (message ,processName );_ce ._bb =err ;return _ce ;};func (_de *processError )Error ()string {var _da string ;if _de ._d !=""{_da =_de ._d ;};_da +="\u0050r\u006f\u0063\u0065\u0073\u0073\u003a "+_de ._b ;if _de ._f !=""{_da +="\u0020\u004d\u0065\u0073\u0073\u0061\u0067\u0065\u003a\u0020"+_de ._f ;};if _de ._bb !=nil {_da +="\u002e\u0020"+_de ._bb .Error ();};return _da ;};func Error (processName ,message string )error {return _e (message ,processName )};func _e (_g ,_cf string )*processError {return &processError {_d :"\u005b\u0055\u006e\u0069\u0050\u0044\u0046\u005d",_f :_g ,_b :_cf };};
+package errors ;import (_c "fmt";_gb "golang.org/x/xerrors";);func Wrapf (err error ,processName ,message string ,arguments ...interface{})error {if _db ,_ce :=err .(*processError );_ce {_db ._e ="";};_cf :=_fg (_c .Sprintf (message ,arguments ...),processName );_cf ._ee =err ;return _cf ;};func _fg (_cac ,_ge string )*processError {return &processError {_e :"\u005b\u0055\u006e\u0069\u0050\u0044\u0046\u005d",_bd :_cac ,_ca :_ge };};func Error (processName ,message string )error {return _fg (message ,processName )};type processError struct{_e string ;_ca string ;_bd string ;_ee error ;};func Wrap (err error ,processName ,message string )error {if _ea ,_gc :=err .(*processError );_gc {_ea ._e ="";};_a :=_fg (message ,processName );_a ._ee =err ;return _a ;};func Errorf (processName ,message string ,arguments ...interface{})error {return _fg (_c .Sprintf (message ,arguments ...),processName );};func (_f *processError )Unwrap ()error {return _f ._ee };var _ _gb .Wrapper =(*processError )(nil );func (_d *processError )Error ()string {var _ec string ;if _d ._e !=""{_ec =_d ._e ;};_ec +="\u0050r\u006f\u0063\u0065\u0073\u0073\u003a "+_d ._ca ;if _d ._bd !=""{_ec +="\u0020\u004d\u0065\u0073\u0073\u0061\u0067\u0065\u003a\u0020"+_d ._bd ;};if _d ._ee !=nil {_ec +="\u002e\u0020"+_d ._ee .Error ();};return _ec ;};

internal/jbig2/internal/internal.go

@@ -0,0 +1,12 @@
+//
+// Copyright 2020 FoxyUtils ehf. All rights reserved.
+//
+// This is a commercial product and requires a license to operate.
+// A trial license can be obtained at https://unidoc.io
+//
+// DO NOT EDIT: generated by unitwist Go source code obfuscator.
+//
+// Use of this source code is governed by the UniDoc End User License Agreement
+// terms that can be accessed at https://unidoc.io/eula/
+
+package internal ;import _a "errors";var ErrOOB =_a .New ("o\u0075\u0074\u0020\u006f\u0066\u0020\u0062\u0061\u006e\u0064");

internal/jbig2/jbig2.go

@@ -9,4 +9,4 @@
 // Use of this source code is governed by the UniDoc End User License Agreement
 // terms that can be accessed at https://unidoc.io/eula/
 
-package jbig2 ;import (_b "github.com/unidoc/unipdf/v3/internal/bitwise";_g "github.com/unidoc/unipdf/v3/internal/jbig2/decoder";_c "github.com/unidoc/unipdf/v3/internal/jbig2/document";_d "github.com/unidoc/unipdf/v3/internal/jbig2/document/segments";_gb "github.com/unidoc/unipdf/v3/internal/jbig2/errors";_e "sort";);func DecodeGlobals (encoded []byte )(Globals ,error ){const _db ="\u0044\u0065\u0063\u006f\u0064\u0065\u0047\u006c\u006f\u0062\u0061\u006c\u0073";_dg :=_b .NewReader (encoded );_af ,_ff :=_c .DecodeDocument (_dg ,nil );if _ff !=nil {return nil ,_gb .Wrap (_ff ,_db ,"");};if _af .GlobalSegments ==nil ||(_af .GlobalSegments .Segments ==nil ){return nil ,_gb .Error (_db ,"\u006eo\u0020\u0067\u006c\u006f\u0062\u0061\u006c\u0020\u0073\u0065\u0067m\u0065\u006e\u0074\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};_ad :=Globals {};for _ ,_bf :=range _af .GlobalSegments .Segments {_ad [int (_bf .SegmentNumber )]=_bf ;};return _ad ,nil ;};func DecodeBytes (encoded []byte ,parameters _g .Parameters ,globals ...Globals )([]byte ,error ){var _a Globals ;if len (globals )> 0{_a =globals [0];};_aa ,_fe :=_g .Decode (encoded ,parameters ,_a .ToDocumentGlobals ());if _fe !=nil {return nil ,_fe ;};return _aa .DecodeNextPage ();};func (_gc Globals )ToDocumentGlobals ()*_c .Globals {if _gc ==nil {return nil ;};_de :=[]*_d .Header {};for _ ,_bg :=range _gc {_de =append (_de ,_bg );};_e .Slice (_de ,func (_ag ,_fdf int )bool {return _de [_ag ].SegmentNumber < _de [_fdf ].SegmentNumber });return &_c .Globals {Segments :_de };};type Globals map[int ]*_d .Header ;
+package jbig2 ;import (_b "github.com/unidoc/unipdf/v3/internal/bitwise";_d "github.com/unidoc/unipdf/v3/internal/jbig2/decoder";_dc "github.com/unidoc/unipdf/v3/internal/jbig2/document";_c "github.com/unidoc/unipdf/v3/internal/jbig2/document/segments";_ag "github.com/unidoc/unipdf/v3/internal/jbig2/errors";_a "sort";);func DecodeGlobals (encoded []byte )(Globals ,error ){const _ac ="\u0044\u0065\u0063\u006f\u0064\u0065\u0047\u006c\u006f\u0062\u0061\u006c\u0073";_ed :=_b .NewReader (encoded );_de ,_f :=_dc .DecodeDocument (_ed ,nil );if _f !=nil {return nil ,_ag .Wrap (_f ,_ac ,"");};if _de .GlobalSegments ==nil ||(_de .GlobalSegments .Segments ==nil ){return nil ,_ag .Error (_ac ,"\u006eo\u0020\u0067\u006c\u006f\u0062\u0061\u006c\u0020\u0073\u0065\u0067m\u0065\u006e\u0074\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};_fd :=Globals {};for _ ,_dg :=range _de .GlobalSegments .Segments {_fd [int (_dg .SegmentNumber )]=_dg ;};return _fd ,nil ;};func DecodeBytes (encoded []byte ,parameters _d .Parameters ,globals ...Globals )([]byte ,error ){var _e Globals ;if len (globals )> 0{_e =globals [0];};_ee ,_ad :=_d .Decode (encoded ,parameters ,_e .ToDocumentGlobals ());if _ad !=nil {return nil ,_ad ;};return _ee .DecodeNextPage ();};type Globals map[int ]*_c .Header ;func (_bd Globals )ToDocumentGlobals ()*_dc .Globals {if _bd ==nil {return nil ;};_ca :=[]*_c .Header {};for _ ,_def :=range _bd {_ca =append (_ca ,_def );};_a .Slice (_ca ,func (_bc ,_ga int )bool {return _ca [_bc ].SegmentNumber < _ca [_ga ].SegmentNumber });return &_dc .Globals {Segments :_ca };};

internal/sampling/sampling.go

@@ -9,4 +9,4 @@
 // Use of this source code is governed by the UniDoc End User License Agreement
 // terms that can be accessed at https://unidoc.io/eula/
 
-package sampling ;import (_e "github.com/unidoc/unipdf/v3/internal/bitwise";_f "github.com/unidoc/unipdf/v3/internal/imageutil";_b "io";);type Writer struct{_dbc _f .ImageBase ;_ea *_e .Writer ;_cdf ,_fda int ;_beg bool ;};func (_gf *Writer )WriteSample (sample uint32 )error {if _ ,_ead :=_gf ._ea .WriteBits (uint64 (sample ),_gf ._dbc .BitsPerComponent );_ead !=nil {return _ead ;};_gf ._fda --;if _gf ._fda ==0{_gf ._fda =_gf ._dbc .ColorComponents ;_gf ._cdf ++;};if _gf ._cdf ==_gf ._dbc .Width {if _gf ._beg {_gf ._ea .FinishByte ();};_gf ._cdf =0;};return nil ;};func (_fb *Reader )ReadSample ()(uint32 ,error ){if _fb ._cg ==_fb ._g .Height {return 0,_b .EOF ;};_af ,_fa :=_fb ._bg .ReadBits (byte (_fb ._g .BitsPerComponent ));if _fa !=nil {return 0,_fa ;};_fb ._bb --;if _fb ._bb ==0{_fb ._bb =_fb ._g .ColorComponents ;_fb ._be ++;};if _fb ._be ==_fb ._g .Width {if _fb ._gb {_fb ._bg .ConsumeRemainingBits ();};_fb ._be =0;_fb ._cg ++;};return uint32 (_af ),nil ;};type Reader struct{_g _f .ImageBase ;_bg *_e .Reader ;_be ,_cg ,_bb int ;_gb bool ;};func ResampleBytes (data []byte ,bitsPerSample int )[]uint32 {var _ce []uint32 ;_ad :=bitsPerSample ;var _fbf uint32 ;var _bd byte ;_eg :=0;_ge :=0;_cge :=0;for _cge < len (data ){if _eg > 0{_d :=_eg ;if _ad < _d {_d =_ad ;};_fbf =(_fbf <<uint (_d ))|uint32 (_bd >>uint (8-_d ));_eg -=_d ;if _eg > 0{_bd =_bd <<uint (_d );}else {_bd =0;};_ad -=_d ;if _ad ==0{_ce =append (_ce ,_fbf );_ad =bitsPerSample ;_fbf =0;_ge ++;};}else {_ed :=data [_cge ];_cge ++;_ff :=8;if _ad < _ff {_ff =_ad ;};_eg =8-_ff ;_fbf =(_fbf <<uint (_ff ))|uint32 (_ed >>uint (_eg ));if _ff < 8{_bd =_ed <<uint (_ff );};_ad -=_ff ;if _ad ==0{_ce =append (_ce ,_fbf );_ad =bitsPerSample ;_fbf =0;_ge ++;};};};for _eg >=bitsPerSample {_fab :=_eg ;if _ad < _fab {_fab =_ad ;};_fbf =(_fbf <<uint (_fab ))|uint32 (_bd >>uint (8-_fab ));_eg -=_fab ;if _eg > 0{_bd =_bd <<uint (_fab );}else {_bd =0;};_ad -=_fab ;if _ad ==0{_ce =append (_ce ,_fbf );_ad =bitsPerSample ;_fbf =0;_ge ++;};};return _ce ;};func (_fad *Reader )ReadSamples (samples []uint32 )(_ba error ){for _cd :=0;_cd < len (samples );_cd ++{samples [_cd ],_ba =_fad .ReadSample ();if _ba !=nil {return _ba ;};};return nil ;};func NewWriter (img _f .ImageBase )*Writer {return &Writer {_ea :_e .NewWriterMSB (img .Data ),_dbc :img ,_fda :img .ColorComponents ,_beg :img .BytesPerLine *8!=img .ColorComponents *img .BitsPerComponent *img .Width };};func NewReader (img _f .ImageBase )*Reader {return &Reader {_bg :_e .NewReader (img .Data ),_g :img ,_bb :img .ColorComponents ,_gb :img .BytesPerLine *8!=img .ColorComponents *img .BitsPerComponent *img .Width };};func ResampleUint32 (data []uint32 ,bitsPerInputSample int ,bitsPerOutputSample int )[]uint32 {var _de []uint32 ;_da :=bitsPerOutputSample ;var _bbf uint32 ;var _db uint32 ;_bgg :=0;_cgc :=0;_fd :=0;for _fd < len (data ){if _bgg > 0{_eda :=_bgg ;if _da < _eda {_eda =_da ;};_bbf =(_bbf <<uint (_eda ))|uint32 (_db >>uint (bitsPerInputSample -_eda ));_bgg -=_eda ;if _bgg > 0{_db =_db <<uint (_eda );}else {_db =0;};_da -=_eda ;if _da ==0{_de =append (_de ,_bbf );_da =bitsPerOutputSample ;_bbf =0;_cgc ++;};}else {_ffe :=data [_fd ];_fd ++;_ede :=bitsPerInputSample ;if _da < _ede {_ede =_da ;};_bgg =bitsPerInputSample -_ede ;_bbf =(_bbf <<uint (_ede ))|uint32 (_ffe >>uint (_bgg ));if _ede < bitsPerInputSample {_db =_ffe <<uint (_ede );};_da -=_ede ;if _da ==0{_de =append (_de ,_bbf );_da =bitsPerOutputSample ;_bbf =0;_cgc ++;};};};for _bgg >=bitsPerOutputSample {_ef :=_bgg ;if _da < _ef {_ef =_da ;};_bbf =(_bbf <<uint (_ef ))|uint32 (_db >>uint (bitsPerInputSample -_ef ));_bgg -=_ef ;if _bgg > 0{_db =_db <<uint (_ef );}else {_db =0;};_da -=_ef ;if _da ==0{_de =append (_de ,_bbf );_da =bitsPerOutputSample ;_bbf =0;_cgc ++;};};if _da > 0&&_da < bitsPerOutputSample {_bbf <<=uint (_da );_de =append (_de ,_bbf );};return _de ;};type SampleReader interface{ReadSample ()(uint32 ,error );ReadSamples (_c []uint32 )error ;};func (_cdg *Writer )WriteSamples (samples []uint32 )error {for _fg :=0;_fg < len (samples );_fg ++{if _cb :=_cdg .WriteSample (samples [_fg ]);_cb !=nil {return _cb ;};};return nil ;};type SampleWriter interface{WriteSample (_eff uint32 )error ;WriteSamples (_dbg []uint32 )error ;};
+package sampling ;import (_bf "github.com/unidoc/unipdf/v3/internal/bitwise";_c "github.com/unidoc/unipdf/v3/internal/imageutil";_b "io";);func NewWriter (img _c .ImageBase )*Writer {return &Writer {_fg :_bf .NewWriterMSB (img .Data ),_acgf :img ,_ced :img .ColorComponents ,_fbd :img .BytesPerLine *8!=img .ColorComponents *img .BitsPerComponent *img .Width };};func (_ebe *Reader )ReadSamples (samples []uint32 )(_ef error ){for _cdd :=0;_cdd < len (samples );_cdd ++{samples [_cdd ],_ef =_ebe .ReadSample ();if _ef !=nil {return _ef ;};};return nil ;};type Writer struct{_acgf _c .ImageBase ;_fg *_bf .Writer ;_fb ,_ced int ;_fbd bool ;};func NewReader (img _c .ImageBase )*Reader {return &Reader {_ce :_bf .NewReader (img .Data ),_e :img ,_a :img .ColorComponents ,_de :img .BytesPerLine *8!=img .ColorComponents *img .BitsPerComponent *img .Width };};func (_acf *Writer )WriteSamples (samples []uint32 )error {for _dee :=0;_dee < len (samples );_dee ++{if _aac :=_acf .WriteSample (samples [_dee ]);_aac !=nil {return _aac ;};};return nil ;};type SampleReader interface{ReadSample ()(uint32 ,error );ReadSamples (_d []uint32 )error ;};func (_ac *Reader )ReadSample ()(uint32 ,error ){if _ac ._bc ==_ac ._e .Height {return 0,_b .EOF ;};_cd ,_ea :=_ac ._ce .ReadBits (byte (_ac ._e .BitsPerComponent ));if _ea !=nil {return 0,_ea ;};_ac ._a --;if _ac ._a ==0{_ac ._a =_ac ._e .ColorComponents ;_ac ._eb ++;};if _ac ._eb ==_ac ._e .Width {if _ac ._de {_ac ._ce .ConsumeRemainingBits ();};_ac ._eb =0;_ac ._bc ++;};return uint32 (_cd ),nil ;};func ResampleUint32 (data []uint32 ,bitsPerInputSample int ,bitsPerOutputSample int )[]uint32 {var _gdb []uint32 ;_bd :=bitsPerOutputSample ;var _bca uint32 ;var _bff uint32 ;_eaf :=0;_ge :=0;_gf :=0;for _gf < len (data ){if _eaf > 0{_ed :=_eaf ;if _bd < _ed {_ed =_bd ;};_bca =(_bca <<uint (_ed ))|(_bff >>uint (bitsPerInputSample -_ed ));_eaf -=_ed ;if _eaf > 0{_bff =_bff <<uint (_ed );}else {_bff =0;};_bd -=_ed ;if _bd ==0{_gdb =append (_gdb ,_bca );_bd =bitsPerOutputSample ;_bca =0;_ge ++;};}else {_edg :=data [_gf ];_gf ++;_acg :=bitsPerInputSample ;if _bd < _acg {_acg =_bd ;};_eaf =bitsPerInputSample -_acg ;_bca =(_bca <<uint (_acg ))|(_edg >>uint (_eaf ));if _acg < bitsPerInputSample {_bff =_edg <<uint (_acg );};_bd -=_acg ;if _bd ==0{_gdb =append (_gdb ,_bca );_bd =bitsPerOutputSample ;_bca =0;_ge ++;};};};for _eaf >=bitsPerOutputSample {_bfg :=_eaf ;if _bd < _bfg {_bfg =_bd ;};_bca =(_bca <<uint (_bfg ))|(_bff >>uint (bitsPerInputSample -_bfg ));_eaf -=_bfg ;if _eaf > 0{_bff =_bff <<uint (_bfg );}else {_bff =0;};_bd -=_bfg ;if _bd ==0{_gdb =append (_gdb ,_bca );_bd =bitsPerOutputSample ;_bca =0;_ge ++;};};if _bd > 0&&_bd < bitsPerOutputSample {_bca <<=uint (_bd );_gdb =append (_gdb ,_bca );};return _gdb ;};type Reader struct{_e _c .ImageBase ;_ce *_bf .Reader ;_eb ,_bc ,_a int ;_de bool ;};func ResampleBytes (data []byte ,bitsPerSample int )[]uint32 {var _gc []uint32 ;_da :=bitsPerSample ;var _gd uint32 ;var _f byte ;_ec :=0;_cb :=0;_gcb :=0;for _gcb < len (data ){if _ec > 0{_cdde :=_ec ;if _da < _cdde {_cdde =_da ;};_gd =(_gd <<uint (_cdde ))|uint32 (_f >>uint (8-_cdde ));_ec -=_cdde ;if _ec > 0{_f =_f <<uint (_cdde );}else {_f =0;};_da -=_cdde ;if _da ==0{_gc =append (_gc ,_gd );_da =bitsPerSample ;_gd =0;_cb ++;};}else {_af :=data [_gcb ];_gcb ++;_dae :=8;if _da < _dae {_dae =_da ;};_ec =8-_dae ;_gd =(_gd <<uint (_dae ))|uint32 (_af >>uint (_ec ));if _dae < 8{_f =_af <<uint (_dae );};_da -=_dae ;if _da ==0{_gc =append (_gc ,_gd );_da =bitsPerSample ;_gd =0;_cb ++;};};};for _ec >=bitsPerSample {_aa :=_ec ;if _da < _aa {_aa =_da ;};_gd =(_gd <<uint (_aa ))|uint32 (_f >>uint (8-_aa ));_ec -=_aa ;if _ec > 0{_f =_f <<uint (_aa );}else {_f =0;};_da -=_aa ;if _da ==0{_gc =append (_gc ,_gd );_da =bitsPerSample ;_gd =0;_cb ++;};};return _gc ;};type SampleWriter interface{WriteSample (_ga uint32 )error ;WriteSamples (_fd []uint32 )error ;};func (_ecg *Writer )WriteSample (sample uint32 )error {if _ ,_afa :=_ecg ._fg .WriteBits (uint64 (sample ),_ecg ._acgf .BitsPerComponent );_afa !=nil {return _afa ;};_ecg ._ced --;if _ecg ._ced ==0{_ecg ._ced =_ecg ._acgf .ColorComponents ;_ecg ._fb ++;};if _ecg ._fb ==_ecg ._acgf .Width {if _ecg ._fbd {_ecg ._fg .FinishByte ();};_ecg ._fb =0;};return nil ;};

model/sighandler/sighandler.go

@@ -10,26 +10,10 @@
 // terms that can be accessed at https://unidoc.io/eula/
 
 // Package sighandler implements digital signature handlers for PDF signature validation and signing.
-package sighandler ;import (_f "bytes";_gd "crypto";_ge "crypto/rand";_fd "crypto/rsa";_ddb "crypto/x509";_de "crypto/x509/pkix";_b "encoding/asn1";_ddf "errors";_gdg "fmt";_gg "github.com/unidoc/pkcs7";_bg "github.com/unidoc/timestamp";_fce "github.com/unidoc/unipdf/v3/core";_e "github.com/unidoc/unipdf/v3/model";_dd "hash";_a "io";_c "io/ioutil";_g "net/http";_fc "time";);
+package sighandler ;import (_e "bytes";_fe "crypto";_ad "crypto/rand";_fg "crypto/rsa";_dc "crypto/x509";_fa "crypto/x509/pkix";_dg "encoding/asn1";_de "errors";_g "fmt";_c "github.com/unidoc/pkcs7";_edb "github.com/unidoc/timestamp";_b "github.com/unidoc/unipdf/v3/core";_cg "github.com/unidoc/unipdf/v3/model";_a "hash";_ed "io";_f "io/ioutil";_dd "net/http";_eb "time";);
 
-// NewAdobePKCS7Detached creates a new Adobe.PPKMS/Adobe.PPKLite adbe.pkcs7.detached signature handler.
-// Both parameters may be nil for the signature validation.
-func NewAdobePKCS7Detached (privateKey *_fd .PrivateKey ,certificate *_ddb .Certificate )(_e .SignatureHandler ,error ){return &adobePKCS7Detached {_fg :certificate ,_fe :privateKey },nil ;};
-
-// IsApplicable returns true if the signature handler is applicable for the PdfSignature.
-func (_ebb *adobeX509RSASHA1 )IsApplicable (sig *_e .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0061d\u0062e\u002e\u0078\u0035\u0030\u0039.\u0072\u0073a\u005f\u0073\u0068\u0061\u0031";};func (_dc *adobePKCS7Detached )getCertificate (_cf *_e .PdfSignature )(*_ddb .Certificate ,error ){if _dc ._fg !=nil {return _dc ._fg ,nil ;};var _fa []byte ;switch _bb :=_cf .Cert .(type ){case *_fce .PdfObjectString :_fa =_bb .Bytes ();case *_fce .PdfObjectArray :if _bb .Len ()==0{return nil ,_ddf .New ("\u006e\u006f\u0020s\u0069\u0067\u006e\u0061t\u0075\u0072\u0065\u0020\u0063\u0065\u0072t\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};for _ ,_be :=range _bb .Elements (){_bde ,_bf :=_fce .GetString (_be );if !_bf {return nil ,_gdg .Errorf ("\u0069\u006ev\u0061\u006c\u0069\u0064\u0020\u0063\u0065\u0072\u0074\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062j\u0065\u0063\u0074\u0020\u0074\u0079p\u0065\u0020\u0069\u006e\u0020\u0073\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065 \u0063\u0065r\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u0063h\u0061\u0069\u006e\u003a\u0020\u0025\u0054",_be );};_fa =append (_fa ,_bde .Bytes ()...);};default:return nil ,_gdg .Errorf ("\u0069n\u0076\u0061l\u0069\u0064\u0020s\u0069\u0067\u006e\u0061\u0074\u0075\u0072e\u0020\u0063\u0065\u0072\u0074\u0069f\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062\u006a\u0065\u0063t\u0020\u0074\u0079\u0070\u0065\u003a\u0020\u0025\u0054",_bb );};_ggb ,_fb :=_ddb .ParseCertificates (_fa );if _fb !=nil {return nil ,_fb ;};return _ggb [0],nil ;};
-
-// Sign sets the Contents fields.
-func (_ef *adobePKCS7Detached )Sign (sig *_e .PdfSignature ,digest _e .Hasher )error {if _ef ._gdgd {_dcc :=_ef ._fdc ;if _dcc <=0{_dcc =8192;};sig .Contents =_fce .MakeHexString (string (make ([]byte ,_dcc )));return nil ;};_ded :=digest .(*_f .Buffer );_ab ,_ggbd :=_gg .NewSignedData (_ded .Bytes ());if _ggbd !=nil {return _ggbd ;};if _ae :=_ab .AddSigner (_ef ._fg ,_ef ._fe ,_gg .SignerInfoConfig {});_ae !=nil {return _ae ;};_ab .Detach ();_fed ,_ggbd :=_ab .Finish ();if _ggbd !=nil {return _ggbd ;};_bdf :=make ([]byte ,8192);copy (_bdf ,_fed );sig .Contents =_fce .MakeHexString (string (_bdf ));return nil ;};
-
-// IsApplicable returns true if the signature handler is applicable for the PdfSignature.
-func (_efe *docTimeStamp )IsApplicable (sig *_e .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0045\u0054\u0053I\u002e\u0052\u0046\u0043\u0033\u0031\u0036\u0031";};
-
-// NewDigest creates a new digest.
-func (_eb *adobePKCS7Detached )NewDigest (sig *_e .PdfSignature )(_e .Hasher ,error ){return _f .NewBuffer (nil ),nil ;};
-
-// InitSignature initialises the PdfSignature.
-func (_gacg *docTimeStamp )InitSignature (sig *_e .PdfSignature )error {_dfc :=*_gacg ;sig .Handler =&_dfc ;sig .Filter =_fce .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_fce .MakeName ("\u0045\u0054\u0053I\u002e\u0052\u0046\u0043\u0033\u0031\u0036\u0031");sig .Reference =nil ;if _gacg ._da > 0{sig .Contents =_fce .MakeHexString (string (make ([]byte ,_gacg ._da )));}else {_bbb ,_fae :=_gacg .NewDigest (sig );if _fae !=nil {return _fae ;};_bbb .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));if _fae =_dfc .Sign (sig ,_bbb );_fae !=nil {return _fae ;};_gacg ._da =_dfc ._da ;};return nil ;};type adobeX509RSASHA1 struct{_gf *_fd .PrivateKey ;_gdgdb *_ddb .Certificate ;_fad SignFunc ;};
+// IsApplicable returns true if the signature handler is applicable for the PdfSignature
+func (_fbd *adobePKCS7Detached )IsApplicable (sig *_cg .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0061\u0064\u0062\u0065.p\u006b\u0063\u0073\u0037\u002e\u0064\u0065\u0074\u0061\u0063\u0068\u0065\u0064";};
 
 // DocTimeStampOpts defines options for configuring the timestamp handler.
 type DocTimeStampOpts struct{
@@ -41,32 +25,39 @@ type DocTimeStampOpts struct{
 // signature.
 SignatureSize int ;};
 
+// InitSignature initialises the PdfSignature.
+func (_ec *adobePKCS7Detached )InitSignature (sig *_cg .PdfSignature )error {if !_ec ._dgc {if _ec ._ga ==nil {return _de .New ("c\u0065\u0072\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u006d\u0075\u0073\u0074\u0020n\u006f\u0074\u0020b\u0065 \u006e\u0069\u006c");};if _ec ._fgf ==nil {return _de .New ("\u0070\u0072\u0069\u0076\u0061\u0074\u0065\u004b\u0065\u0079\u0020m\u0075\u0073\u0074\u0020\u006e\u006f\u0074\u0020\u0062\u0065 \u006e\u0069\u006c");};};_ff :=*_ec ;sig .Handler =&_ff ;sig .Filter =_b .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_b .MakeName ("\u0061\u0064\u0062\u0065.p\u006b\u0063\u0073\u0037\u002e\u0064\u0065\u0074\u0061\u0063\u0068\u0065\u0064");sig .Reference =nil ;_cgb ,_ef :=_ff .NewDigest (sig );if _ef !=nil {return _ef ;};_cgb .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));return _ff .Sign (sig ,_cgb );};func (_dee *adobePKCS7Detached )getCertificate (_gd *_cg .PdfSignature )(*_dc .Certificate ,error ){if _dee ._ga !=nil {return _dee ._ga ,nil ;};_eca ,_gag :=_gd .GetCerts ();if _gag !=nil {return nil ,_gag ;};return _eca [0],nil ;};
+
 // Validate validates PdfSignature.
-func (_gee *docTimeStamp )Validate (sig *_e .PdfSignature ,digest _e .Hasher )(_e .SignatureValidationResult ,error ){_dad :=sig .Contents .Bytes ();_ebdbb ,_def :=_gg .Parse (_dad );if _def !=nil {return _e .SignatureValidationResult {},_def ;};if _def =_ebdbb .Verify ();_def !=nil {return _e .SignatureValidationResult {},_def ;};var _cb timestampInfo ;_ ,_def =_b .Unmarshal (_ebdbb .Content ,&_cb );if _def !=nil {return _e .SignatureValidationResult {},_def ;};_ebf ,_def :=_db (_cb .MessageImprint .HashAlgorithm .Algorithm );if _def !=nil {return _e .SignatureValidationResult {},_def ;};_cca :=_ebf .New ();_dgd :=digest .(*_f .Buffer );_cca .Write (_dgd .Bytes ());_ccf :=_cca .Sum (nil );_bge :=_e .SignatureValidationResult {IsSigned :true ,IsVerified :_f .Equal (_ccf ,_cb .MessageImprint .HashedMessage ),GeneralizedTime :_cb .GeneralizedTime };return _bge ,nil ;};func _db (_aed _b .ObjectIdentifier )(_gd .Hash ,error ){switch {case _aed .Equal (_gg .OIDDigestAlgorithmSHA1 ),_aed .Equal (_gg .OIDDigestAlgorithmECDSASHA1 ),_aed .Equal (_gg .OIDDigestAlgorithmDSA ),_aed .Equal (_gg .OIDDigestAlgorithmDSASHA1 ),_aed .Equal (_gg .OIDEncryptionAlgorithmRSA ):return _gd .SHA1 ,nil ;case _aed .Equal (_gg .OIDDigestAlgorithmSHA256 ),_aed .Equal (_gg .OIDDigestAlgorithmECDSASHA256 ):return _gd .SHA256 ,nil ;case _aed .Equal (_gg .OIDDigestAlgorithmSHA384 ),_aed .Equal (_gg .OIDDigestAlgorithmECDSASHA384 ):return _gd .SHA384 ,nil ;case _aed .Equal (_gg .OIDDigestAlgorithmSHA512 ),_aed .Equal (_gg .OIDDigestAlgorithmECDSASHA512 ):return _gd .SHA512 ,nil ;};return _gd .Hash (0),_gg .ErrUnsupportedAlgorithm ;};type timestampInfo struct{Version int ;Policy _b .RawValue ;MessageImprint struct{HashAlgorithm _de .AlgorithmIdentifier ;HashedMessage []byte ;};SerialNumber _b .RawValue ;GeneralizedTime _fc .Time ;};
+func (_cff *adobeX509RSASHA1 )Validate (sig *_cg .PdfSignature ,digest _cg .Hasher )(_cg .SignatureValidationResult ,error ){_fed ,_ea :=_cff .getCertificate (sig );if _ea !=nil {return _cg .SignatureValidationResult {},_ea ;};_edbg :=sig .Contents .Bytes ();var _gfa []byte ;if _ ,_ffd :=_dg .Unmarshal (_edbg ,&_gfa );_ffd !=nil {return _cg .SignatureValidationResult {},_ffd ;};_bde ,_efb :=digest .(_a .Hash );if !_efb {return _cg .SignatureValidationResult {},_de .New ("\u0068a\u0073h\u0020\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");};_aca ,_ :=_fgb (_fed .SignatureAlgorithm );if _ca :=_fg .VerifyPKCS1v15 (_fed .PublicKey .(*_fg .PublicKey ),_aca ,_bde .Sum (nil ),_gfa );_ca !=nil {return _cg .SignatureValidationResult {},_ca ;};return _cg .SignatureValidationResult {IsSigned :true ,IsVerified :true },nil ;};
 
 // NewDigest creates a new digest.
-func (_bee *docTimeStamp )NewDigest (sig *_e .PdfSignature )(_e .Hasher ,error ){return _f .NewBuffer (nil ),nil ;};
+func (_gf *adobePKCS7Detached )NewDigest (sig *_cg .PdfSignature )(_cg .Hasher ,error ){return _e .NewBuffer (nil ),nil ;};
 
-// NewAdobeX509RSASHA1Custom creates a new Adobe.PPKMS/Adobe.PPKLite adbe.x509.rsa_sha1 signature handler
-// with a custom signing function. Both parameters may be nil for the signature validation.
-func NewAdobeX509RSASHA1Custom (certificate *_ddb .Certificate ,signFunc SignFunc )(_e .SignatureHandler ,error ){return &adobeX509RSASHA1 {_gdgdb :certificate ,_fad :signFunc },nil ;};
+// AdobeX509RSASHA1Opts defines options for configuring the adbe.x509.rsa_sha1
+// signature handler.
+type AdobeX509RSASHA1Opts struct{
+
+// EstimateSize specifies whether the size of the signature contents
+// should be estimated based on the modulus size of the public key
+// extracted from the signing certificate. If set to false, a mock Sign
+// call is made in order to estimate the size of the signature contents.
+EstimateSize bool ;};
+
+// NewDocTimeStampWithOpts returns a new DocTimeStamp configured using the
+// specified options. If no options are provided, default options will be used.
+// Both the timestamp server URL and the hash algorithm can be empty for the
+// signature validation.
+// The following hash algorithms are supported:
+// crypto.SHA1, crypto.SHA256, crypto.SHA384, crypto.SHA512.
+func NewDocTimeStampWithOpts (timestampServerURL string ,hashAlgorithm _fe .Hash ,opts *DocTimeStampOpts )(_cg .SignatureHandler ,error ){if opts ==nil {opts =&DocTimeStampOpts {};};if opts .SignatureSize <=0{opts .SignatureSize =4192;};return &docTimeStamp {_abe :timestampServerURL ,_cb :hashAlgorithm ,_bf :opts .SignatureSize },nil ;};
 
 // SignFunc represents a custom signing function. The function should return
 // the computed signature.
-type SignFunc func (_dfg *_e .PdfSignature ,_ddc _e .Hasher )([]byte ,error );
+type SignFunc func (_cd *_cg .PdfSignature ,_af _cg .Hasher )([]byte ,error );type adobePKCS7Detached struct{_fgf *_fg .PrivateKey ;_ga *_dc .Certificate ;_dgc bool ;_db int ;};
 
-// InitSignature initialises the PdfSignature.
-func (_fee *adobeX509RSASHA1 )InitSignature (sig *_e .PdfSignature )error {if _fee ._gdgdb ==nil {return _ddf .New ("c\u0065\u0072\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u006d\u0075\u0073\u0074\u0020n\u006f\u0074\u0020b\u0065 \u006e\u0069\u006c");};if _fee ._gf ==nil &&_fee ._fad ==nil {return _ddf .New ("\u006d\u0075\u0073\u0074\u0020\u0070\u0072o\u0076\u0069\u0064e\u0020\u0065\u0069t\u0068\u0065r\u0020\u0061\u0020\u0070\u0072\u0069v\u0061te\u0020\u006b\u0065\u0079\u0020\u006f\u0072\u0020\u0061\u0020\u0073\u0069\u0067\u006e\u0069\u006e\u0067\u0020\u0066\u0075\u006e\u0063\u0074\u0069\u006f\u006e");};_ebd :=*_fee ;sig .Handler =&_ebd ;sig .Filter =_fce .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_fce .MakeName ("\u0061d\u0062e\u002e\u0078\u0035\u0030\u0039.\u0072\u0073a\u005f\u0073\u0068\u0061\u0031");sig .Cert =_fce .MakeString (string (_ebd ._gdgdb .Raw ));sig .Reference =nil ;_ga ,_faa :=_ebd .NewDigest (sig );if _faa !=nil {return _faa ;};_ga .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));return _ebd .Sign (sig ,_ga );};
-
-// Sign sets the Contents fields for the PdfSignature.
-func (_acg *docTimeStamp )Sign (sig *_e .PdfSignature ,digest _e .Hasher )error {_adf :=digest .(*_f .Buffer );_gacd :=_acg ._ffg .New ();if _ ,_fde :=_a .Copy (_gacd ,_adf );_fde !=nil {return _fde ;};_cdc :=_bg .Request {HashAlgorithm :_acg ._ffg ,HashedMessage :_gacd .Sum (nil ),Certificates :true ,Extensions :nil ,ExtraExtensions :nil };_ggfg ,_feg :=_cdc .Marshal ();if _feg !=nil {return _feg ;};_agg ,_feg :=_g .Post (_acg ._cd ,"a\u0070\u0070\u006c\u0069\u0063\u0061t\u0069\u006f\u006e\u002f\u0074\u0069\u006d\u0065\u0073t\u0061\u006d\u0070-\u0071u\u0065\u0072\u0079",_f .NewBuffer (_ggfg ));if _feg !=nil {return _feg ;};defer _agg .Body .Close ();_ffae ,_feg :=_c .ReadAll (_agg .Body );if _feg !=nil {return _feg ;};if _agg .StatusCode !=_g .StatusOK {return _gdg .Errorf ("\u0068\u0074\u0074\u0070\u0020\u0073\u0074\u0061\u0074\u0075\u0073\u0020\u0063\u006f\u0064e\u0020n\u006f\u0074\u0020\u006f\u006b\u0020\u0028\u0067\u006f\u0074\u0020\u0025\u0064\u0029",_agg .StatusCode );};var _gff struct{Version _b .RawValue ;Content _b .RawValue ;};if _ ,_feg =_b .Unmarshal (_ffae ,&_gff );_feg !=nil {return _feg ;};_afc :=len (_gff .Content .FullBytes );if _acg ._da > 0&&_afc > _acg ._da {return _e .ErrSignNotEnoughSpace ;};if _afc > 0{_acg ._da =_afc +128;};sig .Contents =_fce .MakeHexString (string (_gff .Content .FullBytes ));return nil ;};func (_aa *adobeX509RSASHA1 )getCertificate (_gac *_e .PdfSignature )(*_ddb .Certificate ,error ){if _aa ._gdgdb !=nil {return _aa ._gdgdb ,nil ;};var _gfg []byte ;switch _cfc :=_gac .Cert .(type ){case *_fce .PdfObjectString :_gfg =_cfc .Bytes ();case *_fce .PdfObjectArray :if _cfc .Len ()==0{return nil ,_ddf .New ("\u006e\u006f\u0020s\u0069\u0067\u006e\u0061t\u0075\u0072\u0065\u0020\u0063\u0065\u0072t\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};for _ ,_efb :=range _cfc .Elements (){_gace ,_gec :=_fce .GetString (_efb );if !_gec {return nil ,_gdg .Errorf ("\u0069\u006ev\u0061\u006c\u0069\u0064\u0020\u0063\u0065\u0072\u0074\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062j\u0065\u0063\u0074\u0020\u0074\u0079p\u0065\u0020\u0069\u006e\u0020\u0073\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065 \u0063\u0065r\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u0063h\u0061\u0069\u006e\u003a\u0020\u0025\u0054",_efb );};_gfg =append (_gfg ,_gace .Bytes ()...);};default:return nil ,_gdg .Errorf ("\u0069n\u0076\u0061l\u0069\u0064\u0020s\u0069\u0067\u006e\u0061\u0074\u0075\u0072e\u0020\u0063\u0065\u0072\u0074\u0069f\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062\u006a\u0065\u0063t\u0020\u0074\u0079\u0070\u0065\u003a\u0020\u0025\u0054",_cfc );};_ad ,_ce :=_ddb .ParseCertificates (_gfg );if _ce !=nil {return nil ,_ce ;};return _ad [0],nil ;};
-
-// NewAdobeX509RSASHA1 creates a new Adobe.PPKMS/Adobe.PPKLite adbe.x509.rsa_sha1 signature handler.
-// Both parameters may be nil for the signature validation.
-func NewAdobeX509RSASHA1 (privateKey *_fd .PrivateKey ,certificate *_ddb .Certificate )(_e .SignatureHandler ,error ){return &adobeX509RSASHA1 {_gdgdb :certificate ,_gf :privateKey },nil ;};
-
-// Sign sets the Contents fields for the PdfSignature.
-func (_ggf *adobeX509RSASHA1 )Sign (sig *_e .PdfSignature ,digest _e .Hasher )error {var _ebdb []byte ;var _ba error ;if _ggf ._fad !=nil {_ebdb ,_ba =_ggf ._fad (sig ,digest );if _ba !=nil {return _ba ;};}else {_fbe ,_afa :=digest .(_dd .Hash );if !_afa {return _ddf .New ("\u0068a\u0073h\u0020\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");};_dg ,_ :=_aca (_ggf ._gdgdb .SignatureAlgorithm );_ebdb ,_ba =_fd .SignPKCS1v15 (_ge .Reader ,_ggf ._gf ,_dg ,_fbe .Sum (nil ));if _ba !=nil {return _ba ;};};_ebdb ,_ba =_b .Marshal (_ebdb );if _ba !=nil {return _ba ;};sig .Contents =_fce .MakeHexString (string (_ebdb ));return nil ;};type docTimeStamp struct{_cd string ;_ffg _gd .Hash ;_da int ;};
+// IsApplicable returns true if the signature handler is applicable for the PdfSignature.
+func (_fggg *docTimeStamp )IsApplicable (sig *_cg .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0045\u0054\u0053I\u002e\u0052\u0046\u0043\u0033\u0031\u0036\u0031";};type docTimeStamp struct{_abe string ;_cb _fe .Hash ;_bf int ;};
 
 // NewDocTimeStamp creates a new DocTimeStamp signature handler.
 // Both the timestamp server URL and the hash algorithm can be empty for the
@@ -76,32 +67,63 @@ func (_ggf *adobeX509RSASHA1 )Sign (sig *_e .PdfSignature ,digest _e .Hasher )er
 // NOTE: the handler will do a mock Sign when initializing the signature
 // in order to estimate the signature size. Use NewDocTimeStampWithOpts
 // for providing the signature size.
-func NewDocTimeStamp (timestampServerURL string ,hashAlgorithm _gd .Hash )(_e .SignatureHandler ,error ){return &docTimeStamp {_cd :timestampServerURL ,_ffg :hashAlgorithm },nil ;};
+func NewDocTimeStamp (timestampServerURL string ,hashAlgorithm _fe .Hash )(_cg .SignatureHandler ,error ){return &docTimeStamp {_abe :timestampServerURL ,_cb :hashAlgorithm },nil ;};
 
 // Validate validates PdfSignature.
-func (_ff *adobePKCS7Detached )Validate (sig *_e .PdfSignature ,digest _e .Hasher )(_e .SignatureValidationResult ,error ){_df :=sig .Contents .Bytes ();_ea ,_ee :=_gg .Parse (_df );if _ee !=nil {return _e .SignatureValidationResult {},_ee ;};_bdg :=digest .(*_f .Buffer );_ea .Content =_bdg .Bytes ();if _ee =_ea .Verify ();_ee !=nil {return _e .SignatureValidationResult {},_ee ;};return _e .SignatureValidationResult {IsSigned :true ,IsVerified :true },nil ;};
+func (_fef *adobePKCS7Detached )Validate (sig *_cg .PdfSignature ,digest _cg .Hasher )(_cg .SignatureValidationResult ,error ){_ade :=sig .Contents .Bytes ();_fb ,_gb :=_c .Parse (_ade );if _gb !=nil {return _cg .SignatureValidationResult {},_gb ;};_gfe :=digest .(*_e .Buffer );_fb .Content =_gfe .Bytes ();if _gb =_fb .Verify ();_gb !=nil {return _cg .SignatureValidationResult {},_gb ;};return _cg .SignatureValidationResult {IsSigned :true ,IsVerified :true },nil ;};
+
+// Validate validates PdfSignature.
+func (_dge *docTimeStamp )Validate (sig *_cg .PdfSignature ,digest _cg .Hasher )(_cg .SignatureValidationResult ,error ){_fgg :=sig .Contents .Bytes ();_eae ,_gfc :=_c .Parse (_fgg );if _gfc !=nil {return _cg .SignatureValidationResult {},_gfc ;};if _gfc =_eae .Verify ();_gfc !=nil {return _cg .SignatureValidationResult {},_gfc ;};var _ag timestampInfo ;_ ,_gfc =_dg .Unmarshal (_eae .Content ,&_ag );if _gfc !=nil {return _cg .SignatureValidationResult {},_gfc ;};_bfa ,_gfc :=_ecb (_ag .MessageImprint .HashAlgorithm .Algorithm );if _gfc !=nil {return _cg .SignatureValidationResult {},_gfc ;};_gbb :=_bfa .New ();_afce :=digest .(*_e .Buffer );_gbb .Write (_afce .Bytes ());_fbdg :=_gbb .Sum (nil );_cee :=_cg .SignatureValidationResult {IsSigned :true ,IsVerified :_e .Equal (_fbdg ,_ag .MessageImprint .HashedMessage ),GeneralizedTime :_ag .GeneralizedTime };return _cee ,nil ;};
+
+// NewAdobeX509RSASHA1CustomWithOpts creates a new Adobe.PPKMS/Adobe.PPKLite
+// adbe.x509.rsa_sha1 signature handler with a custom signing function. The
+// handler is configured based on the provided options. If no options are
+// provided, default options will be used. Both the certificate and the sign
+// function can be nil for the signature validation.
+func NewAdobeX509RSASHA1CustomWithOpts (certificate *_dc .Certificate ,signFunc SignFunc ,opts *AdobeX509RSASHA1Opts )(_cg .SignatureHandler ,error ){if opts ==nil {opts =&AdobeX509RSASHA1Opts {};};return &adobeX509RSASHA1 {_fd :certificate ,_afc :signFunc ,_gdb :opts .EstimateSize },nil ;};type timestampInfo struct{Version int ;Policy _dg .RawValue ;MessageImprint struct{HashAlgorithm _fa .AlgorithmIdentifier ;HashedMessage []byte ;};SerialNumber _dg .RawValue ;GeneralizedTime _eb .Time ;};
+
+// IsApplicable returns true if the signature handler is applicable for the PdfSignature.
+func (_ffa *adobeX509RSASHA1 )IsApplicable (sig *_cg .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0061d\u0062e\u002e\u0078\u0035\u0030\u0039.\u0072\u0073a\u005f\u0073\u0068\u0061\u0031";};type adobeX509RSASHA1 struct{_gdc *_fg .PrivateKey ;_fd *_dc .Certificate ;_afc SignFunc ;_gdb bool ;};
+
+// NewAdobeX509RSASHA1Custom creates a new Adobe.PPKMS/Adobe.PPKLite
+// adbe.x509.rsa_sha1 signature handler with a custom signing function. Both the
+// certificate and the sign function can be nil for the signature validation.
+// NOTE: the handler will do a mock Sign when initializing the signature in
+// order to estimate the signature size. Use NewAdobeX509RSASHA1CustomWithOpts
+// for configuring the handler to estimate the signature size.
+func NewAdobeX509RSASHA1Custom (certificate *_dc .Certificate ,signFunc SignFunc )(_cg .SignatureHandler ,error ){return &adobeX509RSASHA1 {_fd :certificate ,_afc :signFunc },nil ;};
+
+// NewAdobePKCS7Detached creates a new Adobe.PPKMS/Adobe.PPKLite adbe.pkcs7.detached signature handler.
+// Both parameters may be nil for the signature validation.
+func NewAdobePKCS7Detached (privateKey *_fg .PrivateKey ,certificate *_dc .Certificate )(_cg .SignatureHandler ,error ){return &adobePKCS7Detached {_ga :certificate ,_fgf :privateKey },nil ;};func (_gce *adobeX509RSASHA1 )getCertificate (_df *_cg .PdfSignature )(*_dc .Certificate ,error ){if _gce ._fd !=nil {return _gce ._fd ,nil ;};_dec ,_cda :=_df .GetCerts ();if _cda !=nil {return nil ,_cda ;};return _dec [0],nil ;};
+
+// NewDigest creates a new digest.
+func (_bd *adobeX509RSASHA1 )NewDigest (sig *_cg .PdfSignature )(_cg .Hasher ,error ){_bcg ,_ac :=_bd .getCertificate (sig );if _ac !=nil {return nil ,_ac ;};_ffg ,_ :=_fgb (_bcg .SignatureAlgorithm );return _ffg .New (),nil ;};
+
+// InitSignature initialises the PdfSignature.
+func (_ffae *docTimeStamp )InitSignature (sig *_cg .PdfSignature )error {_fgc :=*_ffae ;sig .Handler =&_fgc ;sig .Filter =_b .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_b .MakeName ("\u0045\u0054\u0053I\u002e\u0052\u0046\u0043\u0033\u0031\u0036\u0031");sig .Reference =nil ;if _ffae ._bf > 0{sig .Contents =_b .MakeHexString (string (make ([]byte ,_ffae ._bf )));}else {_fefa ,_fcda :=_ffae .NewDigest (sig );if _fcda !=nil {return _fcda ;};_fefa .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));if _fcda =_fgc .Sign (sig ,_fefa );_fcda !=nil {return _fcda ;};_ffae ._bf =_fgc ._bf ;};return nil ;};func _ecb (_eaf _dg .ObjectIdentifier )(_fe .Hash ,error ){switch {case _eaf .Equal (_c .OIDDigestAlgorithmSHA1 ),_eaf .Equal (_c .OIDDigestAlgorithmECDSASHA1 ),_eaf .Equal (_c .OIDDigestAlgorithmDSA ),_eaf .Equal (_c .OIDDigestAlgorithmDSASHA1 ),_eaf .Equal (_c .OIDEncryptionAlgorithmRSA ):return _fe .SHA1 ,nil ;case _eaf .Equal (_c .OIDDigestAlgorithmSHA256 ),_eaf .Equal (_c .OIDDigestAlgorithmECDSASHA256 ):return _fe .SHA256 ,nil ;case _eaf .Equal (_c .OIDDigestAlgorithmSHA384 ),_eaf .Equal (_c .OIDDigestAlgorithmECDSASHA384 ):return _fe .SHA384 ,nil ;case _eaf .Equal (_c .OIDDigestAlgorithmSHA512 ),_eaf .Equal (_c .OIDDigestAlgorithmECDSASHA512 ):return _fe .SHA512 ,nil ;};return _fe .Hash (0),_c .ErrUnsupportedAlgorithm ;};
+
+// InitSignature initialises the PdfSignature.
+func (_cc *adobeX509RSASHA1 )InitSignature (sig *_cg .PdfSignature )error {if _cc ._fd ==nil {return _de .New ("c\u0065\u0072\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u006d\u0075\u0073\u0074\u0020n\u006f\u0074\u0020b\u0065 \u006e\u0069\u006c");};if _cc ._gdc ==nil &&_cc ._afc ==nil {return _de .New ("\u006d\u0075\u0073\u0074\u0020\u0070\u0072o\u0076\u0069\u0064e\u0020\u0065\u0069t\u0068\u0065r\u0020\u0061\u0020\u0070\u0072\u0069v\u0061te\u0020\u006b\u0065\u0079\u0020\u006f\u0072\u0020\u0061\u0020\u0073\u0069\u0067\u006e\u0069\u006e\u0067\u0020\u0066\u0075\u006e\u0063\u0074\u0069\u006f\u006e");};_eg :=*_cc ;sig .Handler =&_eg ;sig .Filter =_b .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_b .MakeName ("\u0061d\u0062e\u002e\u0078\u0035\u0030\u0039.\u0072\u0073a\u005f\u0073\u0068\u0061\u0031");sig .Cert =_b .MakeString (string (_eg ._fd .Raw ));sig .Reference =nil ;_cf ,_abg :=_eg .NewDigest (sig );if _abg !=nil {return _abg ;};_cf .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));return _eg .sign (sig ,_cf ,_cc ._gdb );};
+
+// NewAdobeX509RSASHA1 creates a new Adobe.PPKMS/Adobe.PPKLite
+// adbe.x509.rsa_sha1 signature handler. Both the private key and the
+// certificate can be nil for the signature validation.
+func NewAdobeX509RSASHA1 (privateKey *_fg .PrivateKey ,certificate *_dc .Certificate )(_cg .SignatureHandler ,error ){return &adobeX509RSASHA1 {_fd :certificate ,_gdc :privateKey },nil ;};
+
+// NewDigest creates a new digest.
+func (_cfc *docTimeStamp )NewDigest (sig *_cg .PdfSignature )(_cg .Hasher ,error ){return _e .NewBuffer (nil ),nil ;};
+
+// Sign sets the Contents fields.
+func (_ab *adobePKCS7Detached )Sign (sig *_cg .PdfSignature ,digest _cg .Hasher )error {if _ab ._dgc {_ge :=_ab ._db ;if _ge <=0{_ge =8192;};sig .Contents =_b .MakeHexString (string (make ([]byte ,_ge )));return nil ;};_dea :=digest .(*_e .Buffer );_bc ,_efg :=_c .NewSignedData (_dea .Bytes ());if _efg !=nil {return _efg ;};if _dga :=_bc .AddSigner (_ab ._ga ,_ab ._fgf ,_c .SignerInfoConfig {});_dga !=nil {return _dga ;};_bc .Detach ();_gdf ,_efg :=_bc .Finish ();if _efg !=nil {return _efg ;};_ba :=make ([]byte ,8192);copy (_ba ,_gdf );sig .Contents =_b .MakeHexString (string (_ba ));return nil ;};
 
 // NewEmptyAdobePKCS7Detached creates a new Adobe.PPKMS/Adobe.PPKLite adbe.pkcs7.detached
 // signature handler. The generated signature is empty and of size signatureLen.
 // The signatureLen parameter can be 0 for the signature validation.
-func NewEmptyAdobePKCS7Detached (signatureLen int )(_e .SignatureHandler ,error ){return &adobePKCS7Detached {_gdgd :true ,_fdc :signatureLen },nil ;};
+func NewEmptyAdobePKCS7Detached (signatureLen int )(_cg .SignatureHandler ,error ){return &adobePKCS7Detached {_dgc :true ,_db :signatureLen },nil ;};func (_bcgc *adobeX509RSASHA1 )sign (_gdd *_cg .PdfSignature ,_gff _cg .Hasher ,_gac bool )error {if !_gac {return _bcgc .Sign (_gdd ,_gff );};_ce ,_ebg :=_bcgc ._fd .PublicKey .(*_fg .PublicKey );if !_ebg {return _g .Errorf ("i\u006e\u0076\u0061\u006c\u0069\u0064 \u0070\u0075\u0062\u006c\u0069\u0063\u0020\u006b\u0065y\u0020\u0074\u0079p\u0065:\u0020\u0025\u0054",_ce );};_bce ,_gcd :=_dg .Marshal (make ([]byte ,_ce .Size ()));if _gcd !=nil {return _gcd ;};_gdd .Contents =_b .MakeHexString (string (_bce ));return nil ;};
 
-// NewDocTimeStampWithOpts returns a new DocTimeStamp configured using the
-// specified options. If no options are provided, default options will be used.
-// Both the timestamp server URL and the hash algorithm can be empty for the
-// signature validation.
-// The following hash algorithms are supported:
-// crypto.SHA1, crypto.SHA256, crypto.SHA384, crypto.SHA512.
-func NewDocTimeStampWithOpts (timestampServerURL string ,hashAlgorithm _gd .Hash ,opts *DocTimeStampOpts )(_e .SignatureHandler ,error ){if opts ==nil {opts =&DocTimeStampOpts {};};if opts .SignatureSize <=0{opts .SignatureSize =4192;};return &docTimeStamp {_cd :timestampServerURL ,_ffg :hashAlgorithm ,_da :opts .SignatureSize },nil ;};
+// Sign sets the Contents fields for the PdfSignature.
+func (_dbe *adobeX509RSASHA1 )Sign (sig *_cg .PdfSignature ,digest _cg .Hasher )error {var _bb []byte ;var _fc error ;if _dbe ._afc !=nil {_bb ,_fc =_dbe ._afc (sig ,digest );if _fc !=nil {return _fc ;};}else {_caa ,_gcc :=digest .(_a .Hash );if !_gcc {return _de .New ("\u0068a\u0073h\u0020\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");};_fdg ,_ :=_fgb (_dbe ._fd .SignatureAlgorithm );_bb ,_fc =_fg .SignPKCS1v15 (_ad .Reader ,_dbe ._gdc ,_fdg ,_caa .Sum (nil ));if _fc !=nil {return _fc ;};};_bb ,_fc =_dg .Marshal (_bb );if _fc !=nil {return _fc ;};sig .Contents =_b .MakeHexString (string (_bb ));return nil ;};
 
-// InitSignature initialises the PdfSignature.
-func (_bd *adobePKCS7Detached )InitSignature (sig *_e .PdfSignature )error {if !_bd ._gdgd {if _bd ._fg ==nil {return _ddf .New ("c\u0065\u0072\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u006d\u0075\u0073\u0074\u0020n\u006f\u0074\u0020b\u0065 \u006e\u0069\u006c");};if _bd ._fe ==nil {return _ddf .New ("\u0070\u0072\u0069\u0076\u0061\u0074\u0065\u004b\u0065\u0079\u0020m\u0075\u0073\u0074\u0020\u006e\u006f\u0074\u0020\u0062\u0065 \u006e\u0069\u006c");};};_cg :=*_bd ;sig .Handler =&_cg ;sig .Filter =_fce .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_fce .MakeName ("\u0061\u0064\u0062\u0065.p\u006b\u0063\u0073\u0037\u002e\u0064\u0065\u0074\u0061\u0063\u0068\u0065\u0064");sig .Reference =nil ;_ac ,_cge :=_cg .NewDigest (sig );if _cge !=nil {return _cge ;};_ac .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));return _cg .Sign (sig ,_ac );};
-
-// IsApplicable returns true if the signature handler is applicable for the PdfSignature
-func (_dcg *adobePKCS7Detached )IsApplicable (sig *_e .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0061\u0064\u0062\u0065.p\u006b\u0063\u0073\u0037\u002e\u0064\u0065\u0074\u0061\u0063\u0068\u0065\u0064";};
-
-// Validate validates PdfSignature.
-func (_cc *adobeX509RSASHA1 )Validate (sig *_e .PdfSignature ,digest _e .Hasher )(_e .SignatureValidationResult ,error ){_af ,_eg :=_cc .getCertificate (sig );if _eg !=nil {return _e .SignatureValidationResult {},_eg ;};_fdcb :=sig .Contents .Bytes ();var _fgg []byte ;if _ ,_ffa :=_b .Unmarshal (_fdcb ,&_fgg );_ffa !=nil {return _e .SignatureValidationResult {},_ffa ;};_bca ,_fcg :=digest .(_dd .Hash );if !_fcg {return _e .SignatureValidationResult {},_ddf .New ("\u0068a\u0073h\u0020\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");};_eaa ,_ :=_aca (_af .SignatureAlgorithm );if _gc :=_fd .VerifyPKCS1v15 (_af .PublicKey .(*_fd .PublicKey ),_eaa ,_bca .Sum (nil ),_fgg );_gc !=nil {return _e .SignatureValidationResult {},_gc ;};return _e .SignatureValidationResult {IsSigned :true ,IsVerified :true },nil ;};type adobePKCS7Detached struct{_fe *_fd .PrivateKey ;_fg *_ddb .Certificate ;_gdgd bool ;_fdc int ;};func _aca (_beb _ddb .SignatureAlgorithm )(_gd .Hash ,bool ){var _ca _gd .Hash ;switch _beb {case _ddb .SHA1WithRSA :_ca =_gd .SHA1 ;case _ddb .SHA256WithRSA :_ca =_gd .SHA256 ;case _ddb .SHA384WithRSA :_ca =_gd .SHA384 ;case _ddb .SHA512WithRSA :_ca =_gd .SHA512 ;default:return _gd .SHA1 ,false ;};return _ca ,true ;};
-
-// NewDigest creates a new digest.
-func (_aad *adobeX509RSASHA1 )NewDigest (sig *_e .PdfSignature )(_e .Hasher ,error ){_gab ,_gdf :=_aad .getCertificate (sig );if _gdf !=nil {return nil ,_gdf ;};_fff ,_ :=_aca (_gab .SignatureAlgorithm );return _fff .New (),nil ;};func (_daa *docTimeStamp )getCertificate (_ag *_e .PdfSignature )(*_ddb .Certificate ,error ){var _dfa []byte ;switch _bfg :=_ag .Cert .(type ){case *_fce .PdfObjectString :_dfa =_bfg .Bytes ();case *_fce .PdfObjectArray :if _bfg .Len ()==0{return nil ,_ddf .New ("\u006e\u006f\u0020s\u0069\u0067\u006e\u0061t\u0075\u0072\u0065\u0020\u0063\u0065\u0072t\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};for _ ,_bba :=range _bfg .Elements (){_agb ,_fab :=_fce .GetString (_bba );if !_fab {return nil ,_gdg .Errorf ("\u0069\u006ev\u0061\u006c\u0069\u0064\u0020\u0063\u0065\u0072\u0074\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062j\u0065\u0063\u0074\u0020\u0074\u0079p\u0065\u0020\u0069\u006e\u0020\u0073\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065 \u0063\u0065r\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u0063h\u0061\u0069\u006e\u003a\u0020\u0025\u0054",_bba );};_dfa =append (_dfa ,_agb .Bytes ()...);};default:return nil ,_gdg .Errorf ("\u0069n\u0076\u0061l\u0069\u0064\u0020s\u0069\u0067\u006e\u0061\u0074\u0075\u0072e\u0020\u0063\u0065\u0072\u0074\u0069f\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062\u006a\u0065\u0063t\u0020\u0074\u0079\u0070\u0065\u003a\u0020\u0025\u0054",_bfg );};_afe ,_ddcb :=_ddb .ParseCertificates (_dfa );if _ddcb !=nil {return nil ,_ddcb ;};return _afe [0],nil ;};
+// Sign sets the Contents fields for the PdfSignature.
+func (_gef *docTimeStamp )Sign (sig *_cg .PdfSignature ,digest _cg .Hasher )error {_efbf :=digest .(*_e .Buffer );_aeg :=_gef ._cb .New ();if _ ,_aba :=_ed .Copy (_aeg ,_efbf );_aba !=nil {return _aba ;};_cbe :=_edb .Request {HashAlgorithm :_gef ._cb ,HashedMessage :_aeg .Sum (nil ),Certificates :true ,Extensions :nil ,ExtraExtensions :nil };_dgg ,_cbg :=_cbe .Marshal ();if _cbg !=nil {return _cbg ;};_acc ,_cbg :=_dd .Post (_gef ._abe ,"a\u0070\u0070\u006c\u0069\u0063\u0061t\u0069\u006f\u006e\u002f\u0074\u0069\u006d\u0065\u0073t\u0061\u006d\u0070-\u0071u\u0065\u0072\u0079",_e .NewBuffer (_dgg ));if _cbg !=nil {return _cbg ;};defer _acc .Body .Close ();_cdg ,_cbg :=_f .ReadAll (_acc .Body );if _cbg !=nil {return _cbg ;};if _acc .StatusCode !=_dd .StatusOK {return _g .Errorf ("\u0068\u0074\u0074\u0070\u0020\u0073\u0074\u0061\u0074\u0075\u0073\u0020\u0063\u006f\u0064e\u0020n\u006f\u0074\u0020\u006f\u006b\u0020\u0028\u0067\u006f\u0074\u0020\u0025\u0064\u0029",_acc .StatusCode );};var _deeb struct{Version _dg .RawValue ;Content _dg .RawValue ;};if _ ,_cbg =_dg .Unmarshal (_cdg ,&_deeb );_cbg !=nil {return _cbg ;};_aed :=len (_deeb .Content .FullBytes );if _gef ._bf > 0&&_aed > _gef ._bf {return _cg .ErrSignNotEnoughSpace ;};if _aed > 0{_gef ._bf =_aed +128;};sig .Contents =_b .MakeHexString (string (_deeb .Content .FullBytes ));return nil ;};func (_bfg *docTimeStamp )getCertificate (_ece *_cg .PdfSignature )(*_dc .Certificate ,error ){_fgd ,_ede :=_ece .GetCerts ();if _ede !=nil {return nil ,_ede ;};return _fgd [0],nil ;};func _fgb (_ae _dc .SignatureAlgorithm )(_fe .Hash ,bool ){var _gc _fe .Hash ;switch _ae {case _dc .SHA1WithRSA :_gc =_fe .SHA1 ;case _dc .SHA256WithRSA :_gc =_fe .SHA256 ;case _dc .SHA384WithRSA :_gc =_fe .SHA384 ;case _dc .SHA512WithRSA :_gc =_fe .SHA512 ;default:return _fe .SHA1 ,false ;};return _gc ,true ;};

model/sigutil/sigutil.go

@@ -0,0 +1,67 @@
+//
+// Copyright 2020 FoxyUtils ehf. All rights reserved.
+//
+// This is a commercial product and requires a license to operate.
+// A trial license can be obtained at https://unidoc.io
+//
+// DO NOT EDIT: generated by unitwist Go source code obfuscator.
+//
+// Use of this source code is governed by the UniDoc End User License Agreement
+// terms that can be accessed at https://unidoc.io/eula/
+
+package sigutil ;import (_e "bytes";_d "crypto";_fg "crypto/x509";_bb "encoding/pem";_f "errors";_gf "fmt";_ba "github.com/unidoc/unipdf/v3/common";_cb "golang.org/x/crypto/ocsp";_c "io/ioutil";_fa "net/http";_g "time";);
+
+// NewCertClient returns a new certificate client.
+func NewCertClient ()*CertClient {return &CertClient {HTTPClient :_ddd ()}};
+
+// IsCA returns true if the provided certificate appears to be a CA certificate.
+func (_eff *CertClient )IsCA (cert *_fg .Certificate )bool {return cert .IsCA &&_e .Equal (cert .RawIssuer ,cert .RawSubject );};
+
+// OCSPClient represents a OCSP (Online Certificate Status Protocol) client.
+// It is used to request revocation data from OCSP servers.
+type OCSPClient struct{
+
+// HTTPClient is the HTTP client used to make OCSP requests.
+// By default, an HTTP client with a 5 second timeout per request is used.
+HTTPClient *_fa .Client ;
+
+// Hash is the hash function  used when constructing the OCSP
+// requests. If zero, SHA-1 will be used.
+Hash _d .Hash ;};
+
+// MakeRequest makes a CRL request to the specified server and returns the
+// response. If a server URL is not provided, it is extracted from the certificate.
+func (_fda *CRLClient )MakeRequest (serverURL string ,cert *_fg .Certificate )([]byte ,error ){if _fda .HTTPClient ==nil {_fda .HTTPClient =_ddd ();};if serverURL ==""{if len (cert .CRLDistributionPoints )==0{return nil ,_f .New ("\u0063e\u0072\u0074i\u0066\u0069\u0063\u0061t\u0065\u0020\u0064o\u0065\u0073\u0020\u006e\u006f\u0074\u0020\u0073\u0070ec\u0069\u0066\u0079 \u0061\u006ey\u0020\u0043\u0052\u004c\u0020\u0073e\u0072\u0076e\u0072\u0073");};serverURL =cert .CRLDistributionPoints [0];};_aca ,_ddc :=_fda .HTTPClient .Get (serverURL );if _ddc !=nil {return nil ,_ddc ;};defer _aca .Body .Close ();_efe ,_ddc :=_c .ReadAll (_aca .Body );if _ddc !=nil {return nil ,_ddc ;};if _efc ,_ :=_bb .Decode (_efe );_efc !=nil {_efe =_efc .Bytes ;};return _efe ,nil ;};
+
+// NewOCSPClient returns a new OCSP client.
+func NewOCSPClient ()*OCSPClient {return &OCSPClient {HTTPClient :_ddd (),Hash :_d .SHA1 }};func _ddd ()*_fa .Client {return &_fa .Client {Timeout :5*_g .Second }};
+
+// Get retrieves the certificate at the specified URL.
+func (_gb *CertClient )Get (url string )(*_fg .Certificate ,error ){if _gb .HTTPClient ==nil {_gb .HTTPClient =_ddd ();};_db ,_a :=_gb .HTTPClient .Get (url );if _a !=nil {return nil ,_a ;};defer _db .Body .Close ();_ac ,_a :=_c .ReadAll (_db .Body );if _a !=nil {return nil ,_a ;};if _fd ,_ :=_bb .Decode (_ac );_fd !=nil {_ac =_fd .Bytes ;};_dda ,_a :=_fg .ParseCertificate (_ac );if _a !=nil {return nil ,_a ;};return _dda ,nil ;};
+
+// CertClient represents a X.509 certificate client. Its primary purpose
+// is to download certificates.
+type CertClient struct{
+
+// HTTPClient is the HTTP client used to make certificate requests.
+// By default, an HTTP client with a 5 second timeout per request is used.
+HTTPClient *_fa .Client ;};
+
+// NewCRLClient returns a new CRL client.
+func NewCRLClient ()*CRLClient {return &CRLClient {HTTPClient :_ddd ()}};
+
+// GetIssuer retrieves the issuer of the provided certificate.
+func (_fb *CertClient )GetIssuer (cert *_fg .Certificate )(*_fg .Certificate ,error ){for _ ,_ge :=range cert .IssuingCertificateURL {_fc ,_ab :=_fb .Get (_ge );if _ab !=nil {_ba .Log .Debug ("\u0057\u0041\u0052\u004e\u003a\u0020\u0063\u006f\u0075\u006c\u0064\u0020\u006e\u006f\u0074 \u0064\u006f\u0077\u006e\u006c\u006f\u0061\u0064\u0020\u0069\u0073\u0073\u0075e\u0072\u0020\u0066\u006f\u0072\u0020\u0063\u0065\u0072\u0074\u0069\u0066ic\u0061\u0074\u0065\u0020\u0025\u0076\u003a\u0020\u0025\u0076",cert .Subject .CommonName ,_ab );continue ;};return _fc ,nil ;};return nil ,_gf .Errorf ("\u0069\u0073\u0073\u0075e\u0072\u0020\u0063\u0065\u0072\u0074\u0069\u0066\u0069\u0063a\u0074e\u0020\u006e\u006f\u0074\u0020\u0066\u006fu\u006e\u0064");};
+
+// MakeRequest makes a OCSP request to the specified server and returns
+// the parsed and raw responses. If a server URL is not provided, it is
+// extracted from the certificate.
+func (_gee *OCSPClient )MakeRequest (serverURL string ,cert ,issuer *_fg .Certificate )(*_cb .Response ,[]byte ,error ){if _gee .HTTPClient ==nil {_gee .HTTPClient =_ddd ();};if serverURL ==""{if len (cert .OCSPServer )==0{return nil ,nil ,_f .New ("\u0063e\u0072\u0074i\u0066\u0069\u0063a\u0074\u0065\u0020\u0064\u006f\u0065\u0073 \u006e\u006f\u0074\u0020\u0073\u0070e\u0063\u0069\u0066\u0079\u0020\u0061\u006e\u0079\u0020\u004f\u0043S\u0050\u0020\u0073\u0065\u0072\u0076\u0065\u0072\u0073");};serverURL =cert .OCSPServer [0];};_ff ,_dbf :=_cb .CreateRequest (cert ,issuer ,&_cb .RequestOptions {Hash :_gee .Hash });if _dbf !=nil {return nil ,nil ,_dbf ;};_fbc ,_dbf :=_gee .HTTPClient .Post (serverURL ,"\u0061p\u0070\u006c\u0069\u0063\u0061\u0074\u0069\u006f\u006e\u002f\u006fc\u0073\u0070\u002d\u0072\u0065\u0071\u0075\u0065\u0073\u0074",_e .NewReader (_ff ));if _dbf !=nil {return nil ,nil ,_dbf ;};defer _fbc .Body .Close ();_gg ,_dbf :=_c .ReadAll (_fbc .Body );if _dbf !=nil {return nil ,nil ,_dbf ;};if _fbf ,_ :=_bb .Decode (_gg );_fbf !=nil {_gg =_fbf .Bytes ;};_cg ,_dbf :=_cb .ParseResponseForCert (_gg ,cert ,issuer );if _dbf !=nil {return nil ,nil ,_dbf ;};return _cg ,_gg ,nil ;};
+
+// CRLClient represents a CRL (Certificate revocation list) client.
+// It is used to request revocation data from CRL servers.
+type CRLClient struct{
+
+// HTTPClient is the HTTP client used to make CRL requests.
+// By default, an HTTP client with a 5 second timeout per request is used.
+HTTPClient *_fa .Client ;};

pdfutil/pdfutil.go

@@ -9,7 +9,7 @@
 // Use of this source code is governed by the UniDoc End User License Agreement
 // terms that can be accessed at https://unidoc.io/eula/
 
-package pdfutil ;import (_ef "github.com/unidoc/unipdf/v3/common";_ec "github.com/unidoc/unipdf/v3/contentstream";_bd "github.com/unidoc/unipdf/v3/contentstream/draw";_f "github.com/unidoc/unipdf/v3/core";_b "github.com/unidoc/unipdf/v3/model";);
+package pdfutil ;import (_ef "github.com/unidoc/unipdf/v3/common";_gb "github.com/unidoc/unipdf/v3/contentstream";_g "github.com/unidoc/unipdf/v3/contentstream/draw";_f "github.com/unidoc/unipdf/v3/core";_ec "github.com/unidoc/unipdf/v3/model";);
 
 // NormalizePage performs the following operations on the passed in page:
 // - Normalize the page rotation.
@@ -26,4 +26,4 @@ package pdfutil ;import (_ef "github.com/unidoc/unipdf/v3/common";_ec "github.co
 // PDF viewer.
 // NOTE: This function does not normalize annotations, outlines other parts
 // that are not part of the basic geometry and page content streams.
-func NormalizePage (page *_b .PdfPage )error {_fg ,_ecc :=page .GetMediaBox ();if _ecc !=nil {return _ecc ;};_bb :=page .Rotate ;_a :=_bb !=nil &&*_bb %360!=0&&*_bb %90==0;_fg .Normalize ();_ee ,_eg ,_bda ,_bg :=_fg .Llx ,_fg .Lly ,_fg .Width (),_fg .Height ();_af :=_ee !=0||_eg !=0;if !_a &&!_af {return nil ;};_c :=func (_d ,_eb ,_ab float64 )_bd .BoundingBox {return _bd .Path {Points :[]_bd .Point {_bd .NewPoint (0,0).Rotate (_ab ),_bd .NewPoint (_d ,0).Rotate (_ab ),_bd .NewPoint (0,_eb ).Rotate (_ab ),_bd .NewPoint (_d ,_eb ).Rotate (_ab )}}.GetBoundingBox ();};_g :=_ec .NewContentCreator ();var _ebb float64 ;if _a {_ebb =-float64 (*page .Rotate );_ce :=_c (_bda ,_bg ,_ebb );_g .Translate ((_ce .Width -_bda )/2+_bda /2,(_ce .Height -_bg )/2+_bg /2);_g .RotateDeg (_ebb );_g .Translate (-_bda /2,-_bg /2);_bda ,_bg =_ce .Width ,_ce .Height ;};if _af {_g .Translate (-_ee ,-_eg );};_de :=_g .Operations ();_cg ,_ecc :=_f .MakeStream (_de .Bytes (),_f .NewFlateEncoder ());if _ecc !=nil {return _ecc ;};_bdf :=_f .MakeArray (_cg );_bdf .Append (page .GetContentStreamObjs ()...);*_fg =_b .PdfRectangle {Urx :_bda ,Ury :_bg };if _ga :=page .CropBox ;_ga !=nil {_ga .Normalize ();_ebbd ,_ea ,_gg ,_gc :=_ga .Llx -_ee ,_ga .Lly -_eg ,_ga .Width (),_ga .Height ();if _a {_aa :=_c (_gg ,_gc ,_ebb );_gg ,_gc =_aa .Width ,_aa .Height ;};*_ga =_b .PdfRectangle {Llx :_ebbd ,Lly :_ea ,Urx :_ebbd +_gg ,Ury :_ea +_gc };};_ef .Log .Debug ("\u0052\u006f\u0074\u0061\u0074\u0065\u003d\u0025\u0066\u00b0\u0020\u004f\u0070\u0073\u003d%\u0071 \u004d\u0065\u0064\u0069\u0061\u0042\u006f\u0078\u003d\u0025\u002e\u0032\u0066",_ebb ,_de ,_fg );page .Contents =_bdf ;page .Rotate =nil ;return nil ;};
+func NormalizePage (page *_ec .PdfPage )error {_eg ,_b :=page .GetMediaBox ();if _b !=nil {return _b ;};_c :=page .Rotate ;_d :=_c !=nil &&*_c %360!=0&&*_c %90==0;_eg .Normalize ();_bc ,_ca ,_fd ,_bd :=_eg .Llx ,_eg .Lly ,_eg .Width (),_eg .Height ();_eb :=_bc !=0||_ca !=0;if !_d &&!_eb {return nil ;};_ce :=func (_ed ,_cg ,_bca float64 )_g .BoundingBox {return _g .Path {Points :[]_g .Point {_g .NewPoint (0,0).Rotate (_bca ),_g .NewPoint (_ed ,0).Rotate (_bca ),_g .NewPoint (0,_cg ).Rotate (_bca ),_g .NewPoint (_ed ,_cg ).Rotate (_bca )}}.GetBoundingBox ();};_fa :=_gb .NewContentCreator ();var _gd float64 ;if _d {_gd =-float64 (*page .Rotate );_edd :=_ce (_fd ,_bd ,_gd );_fa .Translate ((_edd .Width -_fd )/2+_fd /2,(_edd .Height -_bd )/2+_bd /2);_fa .RotateDeg (_gd );_fa .Translate (-_fd /2,-_bd /2);_fd ,_bd =_edd .Width ,_edd .Height ;};if _eb {_fa .Translate (-_bc ,-_ca );};_egg :=_fa .Operations ();_ee ,_b :=_f .MakeStream (_egg .Bytes (),_f .NewFlateEncoder ());if _b !=nil {return _b ;};_bg :=_f .MakeArray (_ee );_bg .Append (page .GetContentStreamObjs ()...);*_eg =_ec .PdfRectangle {Urx :_fd ,Ury :_bd };if _eee :=page .CropBox ;_eee !=nil {_eee .Normalize ();_bge ,_a ,_ecb ,_cc :=_eee .Llx -_bc ,_eee .Lly -_ca ,_eee .Width (),_eee .Height ();if _d {_fad :=_ce (_ecb ,_cc ,_gd );_ecb ,_cc =_fad .Width ,_fad .Height ;};*_eee =_ec .PdfRectangle {Llx :_bge ,Lly :_a ,Urx :_bge +_ecb ,Ury :_a +_cc };};_ef .Log .Debug ("\u0052\u006f\u0074\u0061\u0074\u0065\u003d\u0025\u0066\u00b0\u0020\u004f\u0070\u0073\u003d%\u0071 \u004d\u0065\u0064\u0069\u0061\u0042\u006f\u0078\u003d\u0025\u002e\u0032\u0066",_gd ,_egg ,_eg );page .Contents =_bg ;page .Rotate =nil ;return nil ;};

ps/ps.go

@@ -14,13 +14,13 @@
 //
 // Package ps implements various functionalities needed for handling Postscript for PDF uses, in particular
 // for PDF function type 4.
-package ps ;import (_ef "bufio";_a "bytes";_g "errors";_dg "fmt";_f "github.com/unidoc/unipdf/v3/common";_df "github.com/unidoc/unipdf/v3/core";_e "io";_c "math";);
+package ps ;import (_c "bufio";_db "bytes";_eg "errors";_df "fmt";_dg "github.com/unidoc/unipdf/v3/common";_f "github.com/unidoc/unipdf/v3/core";_d "io";_ca "math";);func (_bfga *PSOperand )ifCondition (_ggg *PSStack )error {_dag ,_acdc :=_ggg .Pop ();if _acdc !=nil {return _acdc ;};_bag ,_acdc :=_ggg .Pop ();if _acdc !=nil {return _acdc ;};_ddcc ,_cdg :=_dag .(*PSProgram );if !_cdg {return ErrTypeCheck ;};_gbdd ,_cdg :=_bag .(*PSBoolean );if !_cdg {return ErrTypeCheck ;};if _gbdd .Val {_cgdb :=_ddcc .Exec (_ggg );return _cgdb ;};return nil ;};func (_bdgg *PSOperand )pop (_aaa *PSStack )error {_ ,_aea :=_aaa .Pop ();if _aea !=nil {return _aea ;};return nil ;};
 
-// Append appends an object to the PSProgram.
-func (_gg *PSProgram )Append (obj PSObject ){*_gg =append (*_gg ,obj )};
+// MakeReal returns a new PSReal object initialized with `val`.
+func MakeReal (val float64 )*PSReal {_bagb :=PSReal {};_bagb .Val =val ;return &_bagb };func (_ef *PSProgram )String ()string {_bac :="\u007b\u0020";for _ ,_bc :=range *_ef {_bac +=_bc .String ();_bac +="\u0020";};_bac +="\u007d";return _bac ;};func (_dac *PSBoolean )String ()string {return _df .Sprintf ("\u0025\u0076",_dac .Val )};
 
-// PSOperand represents a Postscript operand (text string).
-type PSOperand string ;func (_af *PSInteger )DebugString ()string {return _dg .Sprintf ("\u0069\u006e\u0074\u003a\u0025\u0064",_af .Val );};
+// DebugString returns a descriptive string representation of the stack - intended for debugging.
+func (_eab *PSStack )DebugString ()string {_gacf :="\u005b\u0020";for _ ,_egbg :=range *_eab {_gacf +=_egbg .DebugString ();_gacf +="\u0020";};_gacf +="\u005d";return _gacf ;};const _b =0.000001;
 
 // PSObject represents a postscript object.
 type PSObject interface{
@@ -33,87 +33,87 @@ Duplicate ()PSObject ;
 DebugString ()string ;
 
 // String returns a string representation of the PSObject.
-String ()string ;};func (_cgfa *PSOperand )xor (_cbdd *PSStack )error {_cdba ,_faba :=_cbdd .Pop ();if _faba !=nil {return _faba ;};_ggb ,_faba :=_cbdd .Pop ();if _faba !=nil {return _faba ;};if _ega ,_gcb :=_cdba .(*PSBoolean );_gcb {_adfc ,_bcdg :=_ggb .(*PSBoolean );if !_bcdg {return ErrTypeCheck ;};_faba =_cbdd .Push (MakeBool (_ega .Val !=_adfc .Val ));return _faba ;};if _ecba ,_cde :=_cdba .(*PSInteger );_cde {_age ,_dcfd :=_ggb .(*PSInteger );if !_dcfd {return ErrTypeCheck ;};_faba =_cbdd .Push (MakeInteger (_ecba .Val ^_age .Val ));return _faba ;};return ErrTypeCheck ;};func (_dgce *PSOperand )roll (_cdbg *PSStack )error {_ada ,_fdbg :=_cdbg .Pop ();if _fdbg !=nil {return _fdbg ;};_bbb ,_fdbg :=_cdbg .Pop ();if _fdbg !=nil {return _fdbg ;};_ebbg ,_cbg :=_ada .(*PSInteger );if !_cbg {return ErrTypeCheck ;};_dfge ,_cbg :=_bbb .(*PSInteger );if !_cbg {return ErrTypeCheck ;};if _dfge .Val < 0{return ErrRangeCheck ;};if _dfge .Val ==0||_dfge .Val ==1{return nil ;};if _dfge .Val > len (*_cdbg ){return ErrStackUnderflow ;};for _dfgb :=0;_dfgb < _ccg (_ebbg .Val );_dfgb ++{var _eefg []PSObject ;_eefg =(*_cdbg )[len (*_cdbg )-(_dfge .Val ):len (*_cdbg )];if _ebbg .Val > 0{_dfbd :=_eefg [len (_eefg )-1];_eefg =append ([]PSObject {_dfbd },_eefg [0:len (_eefg )-1]...);}else {_acb :=_eefg [len (_eefg )-_dfge .Val ];_eefg =append (_eefg [1:],_acb );};_feg :=append ((*_cdbg )[0:len (*_cdbg )-_dfge .Val ],_eefg ...);_cdbg =&_feg ;};return nil ;};
+String ()string ;};func (_cab *PSOperand )bitshift (_aeb *PSStack )error {_bb ,_feg :=_aeb .PopInteger ();if _feg !=nil {return _feg ;};_gdc ,_feg :=_aeb .PopInteger ();if _feg !=nil {return _feg ;};var _ac int ;if _bb >=0{_ac =_gdc <<uint (_bb );}else {_ac =_gdc >>uint (-_bb );};_feg =_aeb .Push (MakeInteger (_ac ));return _feg ;};func (_gacc *PSOperand )sub (_cged *PSStack )error {_abg ,_gff :=_cged .Pop ();if _gff !=nil {return _gff ;};_gec ,_gff :=_cged .Pop ();if _gff !=nil {return _gff ;};_bbaf ,_adde :=_abg .(*PSReal );_dgeee ,_cae :=_abg .(*PSInteger );if !_adde &&!_cae {return ErrTypeCheck ;};_bfcg ,_dfec :=_gec .(*PSReal );_bcd ,_eeg :=_gec .(*PSInteger );if !_dfec &&!_eeg {return ErrTypeCheck ;};if _cae &&_eeg {_cdfg :=_bcd .Val -_dgeee .Val ;_gfbg :=_cged .Push (MakeInteger (_cdfg ));return _gfbg ;};var _gbfb float64 =0;if _dfec {_gbfb =_bfcg .Val ;}else {_gbfb =float64 (_bcd .Val );};if _adde {_gbfb -=_bbaf .Val ;}else {_gbfb -=float64 (_dgeee .Val );};_gff =_cged .Push (MakeReal (_gbfb ));return _gff ;};func (_ddd *PSInteger )Duplicate ()PSObject {_ged :=PSInteger {};_ged .Val =_ddd .Val ;return &_ged };func (_dgcb *PSParser )parseFunction ()(*PSProgram ,error ){_defc ,_ :=_dgcb ._dcaf .ReadByte ();if _defc !='{'{return nil ,_eg .New ("\u0069\u006ev\u0061\u006c\u0069d\u0020\u0066\u0075\u006e\u0063\u0074\u0069\u006f\u006e");};_bcc :=NewPSProgram ();for {_dgcb .skipSpaces ();_cbb ,_bea :=_dgcb ._dcaf .Peek (2);if _bea !=nil {if _bea ==_d .EOF {break ;};return nil ,_bea ;};_dg .Log .Trace ("\u0050e\u0065k\u0020\u0073\u0074\u0072\u0069\u006e\u0067\u003a\u0020\u0025\u0073",string (_cbb ));if _cbb [0]=='}'{_dg .Log .Trace ("\u0045\u004f\u0046 \u0066\u0075\u006e\u0063\u0074\u0069\u006f\u006e");_dgcb ._dcaf .ReadByte ();break ;}else if _cbb [0]=='{'{_dg .Log .Trace ("\u0046u\u006e\u0063\u0074\u0069\u006f\u006e!");_febc ,_bbb :=_dgcb .parseFunction ();if _bbb !=nil {return nil ,_bbb ;};_bcc .Append (_febc );}else if _f .IsDecimalDigit (_cbb [0])||(_cbb [0]=='-'&&_f .IsDecimalDigit (_cbb [1])){_dg .Log .Trace ("\u002d>\u004e\u0075\u006d\u0062\u0065\u0072!");_bbfd ,_gbg :=_dgcb .parseNumber ();if _gbg !=nil {return nil ,_gbg ;};_bcc .Append (_bbfd );}else {_dg .Log .Trace ("\u002d>\u004fp\u0065\u0072\u0061\u006e\u0064 \u006f\u0072 \u0062\u006f\u006f\u006c\u003f");_cbb ,_ =_dgcb ._dcaf .Peek (5);_dffd :=string (_cbb );_dg .Log .Trace ("\u0050\u0065\u0065k\u0020\u0073\u0074\u0072\u003a\u0020\u0025\u0073",_dffd );if (len (_dffd )> 4)&&(_dffd [:5]=="\u0066\u0061\u006cs\u0065"){_agcb ,_dfg :=_dgcb .parseBool ();if _dfg !=nil {return nil ,_dfg ;};_bcc .Append (_agcb );}else if (len (_dffd )> 3)&&(_dffd [:4]=="\u0074\u0072\u0075\u0065"){_dcad ,_cbc :=_dgcb .parseBool ();if _cbc !=nil {return nil ,_cbc ;};_bcc .Append (_dcad );}else {_cff ,_dda :=_dgcb .parseOperand ();if _dda !=nil {return nil ,_dda ;};_bcc .Append (_cff );};};};return _bcc ,nil ;};
 
-// Push pushes an object on top of the stack.
-func (_fac *PSStack )Push (obj PSObject )error {if len (*_fac )> 100{return ErrStackOverflow ;};*_fac =append (*_fac ,obj );return nil ;};func (_afba *PSParser )parseFunction ()(*PSProgram ,error ){_geb ,_ :=_afba ._bcgg .ReadByte ();if _geb !='{'{return nil ,_g .New ("\u0069\u006ev\u0061\u006c\u0069d\u0020\u0066\u0075\u006e\u0063\u0074\u0069\u006f\u006e");};_egc :=NewPSProgram ();for {_afba .skipSpaces ();_ggc ,_edea :=_afba ._bcgg .Peek (2);if _edea !=nil {if _edea ==_e .EOF {break ;};return nil ,_edea ;};_f .Log .Trace ("\u0050e\u0065k\u0020\u0073\u0074\u0072\u0069\u006e\u0067\u003a\u0020\u0025\u0073",string (_ggc ));if _ggc [0]=='}'{_f .Log .Trace ("\u0045\u004f\u0046 \u0066\u0075\u006e\u0063\u0074\u0069\u006f\u006e");_afba ._bcgg .ReadByte ();break ;}else if _ggc [0]=='{'{_f .Log .Trace ("\u0046u\u006e\u0063\u0074\u0069\u006f\u006e!");_deeg ,_eada :=_afba .parseFunction ();if _eada !=nil {return nil ,_eada ;};_egc .Append (_deeg );}else if _df .IsDecimalDigit (_ggc [0])||(_ggc [0]=='-'&&_df .IsDecimalDigit (_ggc [1])){_f .Log .Trace ("\u002d>\u004e\u0075\u006d\u0062\u0065\u0072!");_afbc ,_geec :=_afba .parseNumber ();if _geec !=nil {return nil ,_geec ;};_egc .Append (_afbc );}else {_f .Log .Trace ("\u002d>\u004fp\u0065\u0072\u0061\u006e\u0064 \u006f\u0072 \u0062\u006f\u006f\u006c\u003f");_ggc ,_ =_afba ._bcgg .Peek (5);_cbfd :=string (_ggc );_f .Log .Trace ("\u0050\u0065\u0065k\u0020\u0073\u0074\u0072\u003a\u0020\u0025\u0073",_cbfd );if (len (_cbfd )> 4)&&(_cbfd [:5]=="\u0066\u0061\u006cs\u0065"){_efcb ,_dgcbd :=_afba .parseBool ();if _dgcbd !=nil {return nil ,_dgcbd ;};_egc .Append (_efcb );}else if (len (_cbfd )> 3)&&(_cbfd [:4]=="\u0074\u0072\u0075\u0065"){_adeg ,_dbd :=_afba .parseBool ();if _dbd !=nil {return nil ,_dbd ;};_egc .Append (_adeg );}else {_gaa ,_fccb :=_afba .parseOperand ();if _fccb !=nil {return nil ,_fccb ;};_egc .Append (_gaa );};};};return _egc ,nil ;};func (_eeg *PSOperand )cvi (_dffe *PSStack )error {_ffd ,_dfad :=_dffe .Pop ();if _dfad !=nil {return _dfad ;};if _efd ,_abb :=_ffd .(*PSReal );_abb {_daa :=int (_efd .Val );_dfad =_dffe .Push (MakeInteger (_daa ));}else if _gee ,_gae :=_ffd .(*PSInteger );_gae {_fca :=_gee .Val ;_dfad =_dffe .Push (MakeInteger (_fca ));}else {return ErrTypeCheck ;};return _dfad ;};
+// Execute executes the program for an input parameters `objects` and returns a slice of output objects.
+func (_bg *PSExecutor )Execute (objects []PSObject )([]PSObject ,error ){for _ ,_fd :=range objects {_dd :=_bg .Stack .Push (_fd );if _dd !=nil {return nil ,_dd ;};};_gcb :=_bg ._g .Exec (_bg .Stack );if _gcb !=nil {_dg .Log .Debug ("\u0045x\u0065c\u0020\u0066\u0061\u0069\u006c\u0065\u0064\u003a\u0020\u0025\u0076",_gcb );return nil ,_gcb ;};_ge :=[]PSObject (*_bg .Stack );_bg .Stack .Empty ();return _ge ,nil ;};
 
-// MakeInteger returns a new PSInteger object initialized with `val`.
-func MakeInteger (val int )*PSInteger {_ccaa :=PSInteger {};_ccaa .Val =val ;return &_ccaa };func (_ffa *PSOperand )copy (_abd *PSStack )error {_gdc ,_ffg :=_abd .PopInteger ();if _ffg !=nil {return _ffg ;};if _gdc < 0{return ErrRangeCheck ;};if _gdc > len (*_abd ){return ErrRangeCheck ;};*_abd =append (*_abd ,(*_abd )[len (*_abd )-_gdc :]...);return nil ;};var ErrUnsupportedOperand =_g .New ("\u0075\u006e\u0073\u0075pp\u006f\u0072\u0074\u0065\u0064\u0020\u006f\u0070\u0065\u0072\u0061\u006e\u0064");
+// Exec executes the operand `op` in the state specified by `stack`.
+func (_dgc *PSOperand )Exec (stack *PSStack )error {_eb :=ErrUnsupportedOperand ;switch *_dgc {case "\u0061\u0062\u0073":_eb =_dgc .abs (stack );case "\u0061\u0064\u0064":_eb =_dgc .add (stack );case "\u0061\u006e\u0064":_eb =_dgc .and (stack );case "\u0061\u0074\u0061\u006e":_eb =_dgc .atan (stack );case "\u0062\u0069\u0074\u0073\u0068\u0069\u0066\u0074":_eb =_dgc .bitshift (stack );case "\u0063e\u0069\u006c\u0069\u006e\u0067":_eb =_dgc .ceiling (stack );case "\u0063\u006f\u0070\u0079":_eb =_dgc .copy (stack );case "\u0063\u006f\u0073":_eb =_dgc .cos (stack );case "\u0063\u0076\u0069":_eb =_dgc .cvi (stack );case "\u0063\u0076\u0072":_eb =_dgc .cvr (stack );case "\u0064\u0069\u0076":_eb =_dgc .div (stack );case "\u0064\u0075\u0070":_eb =_dgc .dup (stack );case "\u0065\u0071":_eb =_dgc .eq (stack );case "\u0065\u0078\u0063\u0068":_eb =_dgc .exch (stack );case "\u0065\u0078\u0070":_eb =_dgc .exp (stack );case "\u0066\u006c\u006fo\u0072":_eb =_dgc .floor (stack );case "\u0067\u0065":_eb =_dgc .ge (stack );case "\u0067\u0074":_eb =_dgc .gt (stack );case "\u0069\u0064\u0069\u0076":_eb =_dgc .idiv (stack );case "\u0069\u0066":_eb =_dgc .ifCondition (stack );case "\u0069\u0066\u0065\u006c\u0073\u0065":_eb =_dgc .ifelse (stack );case "\u0069\u006e\u0064e\u0078":_eb =_dgc .index (stack );case "\u006c\u0065":_eb =_dgc .le (stack );case "\u006c\u006f\u0067":_eb =_dgc .log (stack );case "\u006c\u006e":_eb =_dgc .ln (stack );case "\u006c\u0074":_eb =_dgc .lt (stack );case "\u006d\u006f\u0064":_eb =_dgc .mod (stack );case "\u006d\u0075\u006c":_eb =_dgc .mul (stack );case "\u006e\u0065":_eb =_dgc .ne (stack );case "\u006e\u0065\u0067":_eb =_dgc .neg (stack );case "\u006e\u006f\u0074":_eb =_dgc .not (stack );case "\u006f\u0072":_eb =_dgc .or (stack );case "\u0070\u006f\u0070":_eb =_dgc .pop (stack );case "\u0072\u006f\u0075n\u0064":_eb =_dgc .round (stack );case "\u0072\u006f\u006c\u006c":_eb =_dgc .roll (stack );case "\u0073\u0069\u006e":_eb =_dgc .sin (stack );case "\u0073\u0071\u0072\u0074":_eb =_dgc .sqrt (stack );case "\u0073\u0075\u0062":_eb =_dgc .sub (stack );case "\u0074\u0072\u0075\u006e\u0063\u0061\u0074\u0065":_eb =_dgc .truncate (stack );case "\u0078\u006f\u0072":_eb =_dgc .xor (stack );};return _eb ;};
+
+// PSParser is a basic Postscript parser.
+type PSParser struct{_dcaf *_c .Reader };func (_ffe *PSOperand )ifelse (_gcee *PSStack )error {_cce ,_geee :=_gcee .Pop ();if _geee !=nil {return _geee ;};_bff ,_geee :=_gcee .Pop ();if _geee !=nil {return _geee ;};_aca ,_geee :=_gcee .Pop ();if _geee !=nil {return _geee ;};_gfe ,_agc :=_cce .(*PSProgram );if !_agc {return ErrTypeCheck ;};_cbe ,_agc :=_bff .(*PSProgram );if !_agc {return ErrTypeCheck ;};_dfcd ,_agc :=_aca .(*PSBoolean );if !_agc {return ErrTypeCheck ;};if _dfcd .Val {_beb :=_cbe .Exec (_gcee );return _beb ;};_geee =_gfe .Exec (_gcee );return _geee ;};func (_dbda *PSOperand )round (_dgee *PSStack )error {_beea ,_ebcd :=_dgee .Pop ();if _ebcd !=nil {return _ebcd ;};if _dgga ,_cgg :=_beea .(*PSReal );_cgg {_ebcd =_dgee .Push (MakeReal (_ca .Floor (_dgga .Val +0.5)));}else if _aabc ,_dgeb :=_beea .(*PSInteger );_dgeb {_ebcd =_dgee .Push (MakeInteger (_aabc .Val ));}else {return ErrTypeCheck ;};return _ebcd ;};
+
+// PSProgram defines a Postscript program which is a series of PS objects (arguments, commands, programs etc).
+type PSProgram []PSObject ;
+
+// PSReal represents a real number.
+type PSReal struct{Val float64 ;};func (_bde *PSParser )skipSpaces ()(int ,error ){_dcb :=0;for {_ccfa ,_efd :=_bde ._dcaf .Peek (1);if _efd !=nil {return 0,_efd ;};if _f .IsWhiteSpace (_ccfa [0]){_bde ._dcaf .ReadByte ();_dcb ++;}else {break ;};};return _dcb ,nil ;};
+
+// Empty empties the stack.
+func (_geg *PSStack )Empty (){*_geg =[]PSObject {}};func (_gbcg *PSOperand )sin (_bbfa *PSStack )error {_cbdb ,_bffc :=_bbfa .PopNumberAsFloat64 ();if _bffc !=nil {return _bffc ;};_bddg :=_ca .Sin (_cbdb *_ca .Pi /180.0);_bffc =_bbfa .Push (MakeReal (_bddg ));return _bffc ;};func (_af *PSProgram )DebugString ()string {_cf :="\u007b\u0020";for _ ,_bgb :=range *_af {_cf +=_bgb .DebugString ();_cf +="\u0020";};_cf +="\u007d";return _cf ;};func (_gceb *PSOperand )floor (_gae *PSStack )error {_gbeg ,_fea :=_gae .Pop ();if _fea !=nil {return _fea ;};if _dgcgb ,_gbfc :=_gbeg .(*PSReal );_gbfc {_fea =_gae .Push (MakeReal (_ca .Floor (_dgcgb .Val )));}else if _faa ,_fcfd :=_gbeg .(*PSInteger );_fcfd {_fea =_gae .Push (MakeInteger (_faa .Val ));}else {return ErrTypeCheck ;};return _fea ;};func (_ggce *PSOperand )copy (_cgac *PSStack )error {_bdd ,_aae :=_cgac .PopInteger ();if _aae !=nil {return _aae ;};if _bdd < 0{return ErrRangeCheck ;};if _bdd > len (*_cgac ){return ErrRangeCheck ;};*_cgac =append (*_cgac ,(*_cgac )[len (*_cgac )-_bdd :]...);return nil ;};func (_eaa *PSOperand )le (_fdca *PSStack )error {_aaf ,_ebf :=_fdca .PopNumberAsFloat64 ();if _ebf !=nil {return _ebf ;};_fbef ,_ebf :=_fdca .PopNumberAsFloat64 ();if _ebf !=nil {return _ebf ;};if _ca .Abs (_fbef -_aaf )< _b {_cdga :=_fdca .Push (MakeBool (true ));return _cdga ;}else if _fbef < _aaf {_cbed :=_fdca .Push (MakeBool (true ));return _cbed ;}else {_bede :=_fdca .Push (MakeBool (false ));return _bede ;};};
+
+// MakeBool returns a new PSBoolean object initialized with `val`.
+func MakeBool (val bool )*PSBoolean {_eca :=PSBoolean {};_eca .Val =val ;return &_eca };
+
+// NewPSProgram returns an empty, initialized PSProgram.
+func NewPSProgram ()*PSProgram {return &PSProgram {}};var ErrUndefinedResult =_eg .New ("\u0075\u006e\u0064\u0065fi\u006e\u0065\u0064\u0020\u0072\u0065\u0073\u0075\u006c\u0074\u0020\u0065\u0072\u0072o\u0072");func (_cge *PSOperand )lt (_gbbb *PSStack )error {_bfb ,_ffd :=_gbbb .PopNumberAsFloat64 ();if _ffd !=nil {return _ffd ;};_aee ,_ffd :=_gbbb .PopNumberAsFloat64 ();if _ffd !=nil {return _ffd ;};if _ca .Abs (_aee -_bfb )< _b {_cege :=_gbbb .Push (MakeBool (false ));return _cege ;}else if _aee < _bfb {_bdc :=_gbbb .Push (MakeBool (true ));return _bdc ;}else {_cgb :=_gbbb .Push (MakeBool (false ));return _cgb ;};};func (_aa *PSOperand )atan (_ege *PSStack )error {_cad ,_bed :=_ege .PopNumberAsFloat64 ();if _bed !=nil {return _bed ;};_ga ,_bed :=_ege .PopNumberAsFloat64 ();if _bed !=nil {return _bed ;};if _cad ==0{var _egf error ;if _ga < 0{_egf =_ege .Push (MakeReal (270));}else {_egf =_ege .Push (MakeReal (90));};return _egf ;};_dbd :=_ga /_cad ;_ae :=_ca .Atan (_dbd )*180/_ca .Pi ;_bed =_ege .Push (MakeReal (_ae ));return _bed ;};func (_afg *PSOperand )mul (_caba *PSStack )error {_aed ,_edd :=_caba .Pop ();if _edd !=nil {return _edd ;};_gfb ,_edd :=_caba .Pop ();if _edd !=nil {return _edd ;};_aac ,_abbc :=_aed .(*PSReal );_cbeg ,_bdf :=_aed .(*PSInteger );if !_abbc &&!_bdf {return ErrTypeCheck ;};_afe ,_cgda :=_gfb .(*PSReal );_bbcf ,_dadb :=_gfb .(*PSInteger );if !_cgda &&!_dadb {return ErrTypeCheck ;};if _bdf &&_dadb {_bffb :=_cbeg .Val *_bbcf .Val ;_dea :=_caba .Push (MakeInteger (_bffb ));return _dea ;};var _gbbbg float64 ;if _abbc {_gbbbg =_aac .Val ;}else {_gbbbg =float64 (_cbeg .Val );};if _cgda {_gbbbg *=_afe .Val ;}else {_gbbbg *=float64 (_bbcf .Val );};_edd =_caba .Push (MakeReal (_gbbbg ));return _edd ;};func (_ggd *PSOperand )sqrt (_age *PSStack )error {_agg ,_cbf :=_age .PopNumberAsFloat64 ();if _cbf !=nil {return _cbf ;};if _agg < 0{return ErrRangeCheck ;};_cceg :=_ca .Sqrt (_agg );_cbf =_age .Push (MakeReal (_cceg ));return _cbf ;};func (_ddg *PSOperand )ne (_fgge *PSStack )error {_fbda :=_ddg .eq (_fgge );if _fbda !=nil {return _fbda ;};_fbda =_ddg .not (_fgge );return _fbda ;};
+
+// PSBoolean represents a boolean value.
+type PSBoolean struct{Val bool ;};func (_ddb *PSOperand )index (_cac *PSStack )error {_aba ,_fdba :=_cac .Pop ();if _fdba !=nil {return _fdba ;};_gac ,_fcg :=_aba .(*PSInteger );if !_fcg {return ErrTypeCheck ;};if _gac .Val < 0{return ErrRangeCheck ;};if _gac .Val > len (*_cac )-1{return ErrStackUnderflow ;};_dadd :=(*_cac )[len (*_cac )-1-_gac .Val ];_fdba =_cac .Push (_dadd .Duplicate ());return _fdba ;};func (_gfc *PSOperand )roll (_gbec *PSStack )error {_bdbd ,_cdb :=_gbec .Pop ();if _cdb !=nil {return _cdb ;};_caae ,_cdb :=_gbec .Pop ();if _cdb !=nil {return _cdb ;};_cdeg ,_dgeea :=_bdbd .(*PSInteger );if !_dgeea {return ErrTypeCheck ;};_bffe ,_dgeea :=_caae .(*PSInteger );if !_dgeea {return ErrTypeCheck ;};if _bffe .Val < 0{return ErrRangeCheck ;};if _bffe .Val ==0||_bffe .Val ==1{return nil ;};if _bffe .Val > len (*_gbec ){return ErrStackUnderflow ;};for _ceca :=0;_ceca < _ggbb (_cdeg .Val );_ceca ++{var _fcc []PSObject ;_fcc =(*_gbec )[len (*_gbec )-(_bffe .Val ):len (*_gbec )];if _cdeg .Val > 0{_fbfb :=_fcc [len (_fcc )-1];_fcc =append ([]PSObject {_fbfb },_fcc [0:len (_fcc )-1]...);}else {_bbd :=_fcc [len (_fcc )-_bffe .Val ];_fcc =append (_fcc [1:],_bbd );};_aef :=append ((*_gbec )[0:len (*_gbec )-_bffe .Val ],_fcc ...);_gbec =&_aef ;};return nil ;};func (_a *PSBoolean )Duplicate ()PSObject {_dgd :=PSBoolean {};_dgd .Val =_a .Val ;return &_dgd };func (_ecde *PSParser )parseBool ()(*PSBoolean ,error ){_efc ,_fccc :=_ecde ._dcaf .Peek (4);if _fccc !=nil {return MakeBool (false ),_fccc ;};if (len (_efc )>=4)&&(string (_efc [:4])=="\u0074\u0072\u0075\u0065"){_ecde ._dcaf .Discard (4);return MakeBool (true ),nil ;};_efc ,_fccc =_ecde ._dcaf .Peek (5);if _fccc !=nil {return MakeBool (false ),_fccc ;};if (len (_efc )>=5)&&(string (_efc [:5])=="\u0066\u0061\u006cs\u0065"){_ecde ._dcaf .Discard (5);return MakeBool (false ),nil ;};return MakeBool (false ),_eg .New ("\u0075n\u0065\u0078\u0070\u0065c\u0074\u0065\u0064\u0020\u0062o\u006fl\u0065a\u006e\u0020\u0073\u0074\u0072\u0069\u006eg");};
+
+// MakeOperand returns a new PSOperand object based on string `val`.
+func MakeOperand (val string )*PSOperand {_ffcd :=PSOperand (val );return &_ffcd };func (_bgea *PSParser )parseNumber ()(PSObject ,error ){_eff ,_fcd :=_f .ParseNumber (_bgea ._dcaf );if _fcd !=nil {return nil ,_fcd ;};switch _gdf :=_eff .(type ){case *_f .PdfObjectFloat :return MakeReal (float64 (*_gdf )),nil ;case *_f .PdfObjectInteger :return MakeInteger (int (*_gdf )),nil ;};return nil ,_df .Errorf ("\u0075n\u0068\u0061\u006e\u0064\u006c\u0065\u0064\u0020\u006e\u0075\u006db\u0065\u0072\u0020\u0074\u0079\u0070\u0065\u0020\u0025\u0054",_eff );};func (_ebc *PSOperand )or (_baf *PSStack )error {_cegfb ,_egg :=_baf .Pop ();if _egg !=nil {return _egg ;};_affc ,_egg :=_baf .Pop ();if _egg !=nil {return _egg ;};if _ffdg ,_bbcfe :=_cegfb .(*PSBoolean );_bbcfe {_acf ,_afc :=_affc .(*PSBoolean );if !_afc {return ErrTypeCheck ;};_egg =_baf .Push (MakeBool (_ffdg .Val ||_acf .Val ));return _egg ;};if _agdd ,_ccd :=_cegfb .(*PSInteger );_ccd {_gcag ,_ada :=_affc .(*PSInteger );if !_ada {return ErrTypeCheck ;};_egg =_baf .Push (MakeInteger (_agdd .Val |_gcag .Val ));return _egg ;};return ErrTypeCheck ;};
 
 // PopInteger specificially pops an integer from the top of the stack, returning the value as an int.
-func (_bccd *PSStack )PopInteger ()(int ,error ){_bbf ,_aeda :=_bccd .Pop ();if _aeda !=nil {return 0,_aeda ;};if _cbc ,_bfe :=_bbf .(*PSInteger );_bfe {return _cbc .Val ,nil ;};return 0,ErrTypeCheck ;};func (_cag *PSOperand )log (_ddcg *PSStack )error {_dcccg ,_dgf :=_ddcg .PopNumberAsFloat64 ();if _dgf !=nil {return _dgf ;};_eba :=_c .Log10 (_dcccg );_dgf =_ddcg .Push (MakeReal (_eba ));return _dgf ;};
+func (_defbe *PSStack )PopInteger ()(int ,error ){_edb ,_eddbd :=_defbe .Pop ();if _eddbd !=nil {return 0,_eddbd ;};if _efbd ,_fgf :=_edb .(*PSInteger );_fgf {return _efbd .Val ,nil ;};return 0,ErrTypeCheck ;};func (_gb *PSOperand )DebugString ()string {return _df .Sprintf ("\u006fp\u003a\u0027\u0025\u0073\u0027",*_gb );};func (_ec *PSInteger )String ()string {return _df .Sprintf ("\u0025\u0064",_ec .Val )};func (_fga *PSOperand )gt (_cgf *PSStack )error {_abeb ,_agbf :=_cgf .PopNumberAsFloat64 ();if _agbf !=nil {return _agbf ;};_dfb ,_agbf :=_cgf .PopNumberAsFloat64 ();if _agbf !=nil {return _agbf ;};if _ca .Abs (_dfb -_abeb )< _b {_gcac :=_cgf .Push (MakeBool (false ));return _gcac ;}else if _dfb > _abeb {_gee :=_cgf .Push (MakeBool (true ));return _gee ;}else {_acd :=_cgf .Push (MakeBool (false ));return _acd ;};};func (_fcf *PSOperand )div (_fdb *PSStack )error {_cfcf ,_bbg :=_fdb .Pop ();if _bbg !=nil {return _bbg ;};_fad ,_bbg :=_fdb .Pop ();if _bbg !=nil {return _bbg ;};_gf ,_fbf :=_cfcf .(*PSReal );_fbfe ,_ddfc :=_cfcf .(*PSInteger );if !_fbf &&!_ddfc {return ErrTypeCheck ;};if _fbf &&_gf .Val ==0{return ErrUndefinedResult ;};if _ddfc &&_fbfe .Val ==0{return ErrUndefinedResult ;};_gge ,_ggf :=_fad .(*PSReal );_bbf ,_agd :=_fad .(*PSInteger );if !_ggf &&!_agd {return ErrTypeCheck ;};var _bce float64 ;if _ggf {_bce =_gge .Val ;}else {_bce =float64 (_bbf .Val );};if _fbf {_bce /=_gf .Val ;}else {_bce /=float64 (_fbfe .Val );};_bbg =_fdb .Push (MakeReal (_bce ));return _bbg ;};func (_fgb *PSOperand )ln (_bbc *PSStack )error {_fcfc ,_cde :=_bbc .PopNumberAsFloat64 ();if _cde !=nil {return _cde ;};_egae :=_ca .Log (_fcfc );_cde =_bbc .Push (MakeReal (_egae ));return _cde ;};
 
-// NewPSStack returns an initialized PSStack.
-func NewPSStack ()*PSStack {return &PSStack {}};func (_eed *PSOperand )ifCondition (_gcegg *PSStack )error {_beg ,_gda :=_gcegg .Pop ();if _gda !=nil {return _gda ;};_eggg ,_gda :=_gcegg .Pop ();if _gda !=nil {return _gda ;};_aeg ,_cab :=_beg .(*PSProgram );if !_cab {return ErrTypeCheck ;};_abbb ,_cab :=_eggg .(*PSBoolean );if !_cab {return ErrTypeCheck ;};if _abbb .Val {_ddce :=_aeg .Exec (_gcegg );return _ddce ;};return nil ;};func (_dcb *PSOperand )and (_dbf *PSStack )error {_bdg ,_agc :=_dbf .Pop ();if _agc !=nil {return _agc ;};_eab ,_agc :=_dbf .Pop ();if _agc !=nil {return _agc ;};if _ff ,_bbe :=_bdg .(*PSBoolean );_bbe {_fde ,_fc :=_eab .(*PSBoolean );if !_fc {return ErrTypeCheck ;};_agc =_dbf .Push (MakeBool (_ff .Val &&_fde .Val ));return _agc ;};if _gfee ,_fbgc :=_bdg .(*PSInteger );_fbgc {_dag ,_bgb :=_eab .(*PSInteger );if !_bgb {return ErrTypeCheck ;};_agc =_dbf .Push (MakeInteger (_gfee .Val &_dag .Val ));return _agc ;};return ErrTypeCheck ;};func (_geg *PSOperand )exch (_egf *PSStack )error {_bde ,_fdea :=_egf .Pop ();if _fdea !=nil {return _fdea ;};_bdb ,_fdea :=_egf .Pop ();if _fdea !=nil {return _fdea ;};_fdea =_egf .Push (_bde );if _fdea !=nil {return _fdea ;};_fdea =_egf .Push (_bdb );return _fdea ;};
+// MakeInteger returns a new PSInteger object initialized with `val`.
+func MakeInteger (val int )*PSInteger {_bbbg :=PSInteger {};_bbbg .Val =val ;return &_bbbg };func (_gdcg *PSOperand )dup (_cag *PSStack )error {_ccbg ,_dga :=_cag .Pop ();if _dga !=nil {return _dga ;};_dga =_cag .Push (_ccbg );if _dga !=nil {return _dga ;};_dga =_cag .Push (_ccbg .Duplicate ());return _dga ;};
 
-// Parse parses the postscript and store as a program that can be executed.
-func (_ace *PSParser )Parse ()(*PSProgram ,error ){_ace .skipSpaces ();_accf ,_ggg :=_ace ._bcgg .Peek (2);if _ggg !=nil {return nil ,_ggg ;};if _accf [0]!='{'{return nil ,_g .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0050\u0053\u0020\u0050\u0072\u006f\u0067\u0072\u0061\u006d\u0020\u006e\u006f\u0074\u0020\u0073t\u0061\u0072\u0074\u0069\u006eg\u0020\u0077i\u0074\u0068\u0020\u007b");};_fgf ,_ggg :=_ace .parseFunction ();if _ggg !=nil &&_ggg !=_e .EOF {return nil ,_ggg ;};return _fgf ,_ggg ;};var ErrUndefinedResult =_g .New ("\u0075\u006e\u0064\u0065fi\u006e\u0065\u0064\u0020\u0072\u0065\u0073\u0075\u006c\u0074\u0020\u0065\u0072\u0072o\u0072");func (_dd *PSReal )String ()string {return _dg .Sprintf ("\u0025\u002e\u0035\u0066",_dd .Val )};var ErrStackUnderflow =_g .New ("\u0073t\u0061c\u006b\u0020\u0075\u006e\u0064\u0065\u0072\u0066\u006c\u006f\u0077");
-
-// DebugString returns a descriptive string representation of the stack - intended for debugging.
-func (_bcdb *PSStack )DebugString ()string {_cfeg :="\u005b\u0020";for _ ,_bab :=range *_bcdb {_cfeg +=_bab .DebugString ();_cfeg +="\u0020";};_cfeg +="\u005d";return _cfeg ;};func (_aa *PSProgram )DebugString ()string {_fae :="\u007b\u0020";for _ ,_cc :=range *_aa {_fae +=_cc .DebugString ();_fae +="\u0020";};_fae +="\u007d";return _fae ;};func _ccg (_bdf int )int {if _bdf < 0{return -_bdf ;};return _bdf ;};func (_adc *PSOperand )idiv (_bfgb *PSStack )error {_bfff ,_cedd :=_bfgb .Pop ();if _cedd !=nil {return _cedd ;};_eef ,_cedd :=_bfgb .Pop ();if _cedd !=nil {return _cedd ;};_bfb ,_fdf :=_bfff .(*PSInteger );if !_fdf {return ErrTypeCheck ;};if _bfb .Val ==0{return ErrUndefinedResult ;};_dae ,_fdf :=_eef .(*PSInteger );if !_fdf {return ErrTypeCheck ;};_cfd :=_dae .Val /_bfb .Val ;_cedd =_bfgb .Push (MakeInteger (_cfd ));return _cedd ;};func (_bfcb *PSOperand )mul (_fcdab *PSStack )error {_fdde ,_fdda :=_fcdab .Pop ();if _fdda !=nil {return _fdda ;};_adff ,_fdda :=_fcdab .Pop ();if _fdda !=nil {return _fdda ;};_cega ,_aec :=_fdde .(*PSReal );_ebg ,_adcg :=_fdde .(*PSInteger );if !_aec &&!_adcg {return ErrTypeCheck ;};_dbeb ,_cfbg :=_adff .(*PSReal );_fdfa ,_bada :=_adff .(*PSInteger );if !_cfbg &&!_bada {return ErrTypeCheck ;};if _adcg &&_bada {_gdb :=_ebg .Val *_fdfa .Val ;_faeb :=_fcdab .Push (MakeInteger (_gdb ));return _faeb ;};var _dfb float64 =0;if _aec {_dfb =_cega .Val ;}else {_dfb =float64 (_ebg .Val );};if _cfbg {_dfb *=_dbeb .Val ;}else {_dfb *=float64 (_fdfa .Val );};_fdda =_fcdab .Push (MakeReal (_dfb ));return _fdda ;};func (_cba *PSOperand )sub (_faa *PSStack )error {_cbd ,_cbgd :=_faa .Pop ();if _cbgd !=nil {return _cbgd ;};_bagf ,_cbgd :=_faa .Pop ();if _cbgd !=nil {return _cbgd ;};_cgb ,_edbf :=_cbd .(*PSReal );_gcda ,_eedbd :=_cbd .(*PSInteger );if !_edbf &&!_eedbd {return ErrTypeCheck ;};_cfcc ,_gcg :=_bagf .(*PSReal );_aae ,_bbad :=_bagf .(*PSInteger );if !_gcg &&!_bbad {return ErrTypeCheck ;};if _eedbd &&_bbad {_ecga :=_aae .Val -_gcda .Val ;_geae :=_faa .Push (MakeInteger (_ecga ));return _geae ;};var _cegc float64 =0;if _gcg {_cegc =_cfcc .Val ;}else {_cegc =float64 (_aae .Val );};if _edbf {_cegc -=_cgb .Val ;}else {_cegc -=float64 (_gcda .Val );};_cbgd =_faa .Push (MakeReal (_cegc ));return _cbgd ;};func (_fd *PSInteger )String ()string {return _dg .Sprintf ("\u0025\u0064",_fd .Val )};
+// PSStack defines a stack of PSObjects. PSObjects can be pushed on or pull from the stack.
+type PSStack []PSObject ;func (_gbf *PSOperand )cvr (_bba *PSStack )error {_dgba ,_abe :=_bba .Pop ();if _abe !=nil {return _abe ;};if _egbb ,_cfb :=_dgba .(*PSReal );_cfb {_abe =_bba .Push (MakeReal (_egbb .Val ));}else if _dgg ,_egac :=_dgba .(*PSInteger );_egac {_abe =_bba .Push (MakeReal (float64 (_dgg .Val )));}else {return ErrTypeCheck ;};return _abe ;};func (_dff *PSOperand )eq (_bad *PSStack )error {_bedd ,_ddde :=_bad .Pop ();if _ddde !=nil {return _ddde ;};_ccc ,_ddde :=_bad .Pop ();if _ddde !=nil {return _ddde ;};_ea ,_gca :=_bedd .(*PSBoolean );_afb ,_ccf :=_ccc .(*PSBoolean );if _gca ||_ccf {var _gbfa error ;if _gca &&_ccf {_gbfa =_bad .Push (MakeBool (_ea .Val ==_afb .Val ));}else {_gbfa =_bad .Push (MakeBool (false ));};return _gbfa ;};var _cbd float64 ;var _abf float64 ;if _cagb ,_fddf :=_bedd .(*PSInteger );_fddf {_cbd =float64 (_cagb .Val );}else if _fde ,_dc :=_bedd .(*PSReal );_dc {_cbd =_fde .Val ;}else {return ErrTypeCheck ;};if _bbad ,_dcc :=_ccc .(*PSInteger );_dcc {_abf =float64 (_bbad .Val );}else if _fdbb ,_ggb :=_ccc .(*PSReal );_ggb {_abf =_fdbb .Val ;}else {return ErrTypeCheck ;};if _ca .Abs (_abf -_cbd )< _b {_ddde =_bad .Push (MakeBool (true ));}else {_ddde =_bad .Push (MakeBool (false ));};return _ddde ;};func (_ccb *PSProgram )Duplicate ()PSObject {_fdde :=&PSProgram {};for _ ,_cd :=range *_ccb {_fdde .Append (_cd .Duplicate ());};return _fdde ;};func (_ede *PSOperand )neg (_eda *PSStack )error {_bcea ,_beda :=_eda .Pop ();if _beda !=nil {return _beda ;};if _efgb ,_geddd :=_bcea .(*PSReal );_geddd {_beda =_eda .Push (MakeReal (-_efgb .Val ));return _beda ;}else if _bcf ,_fcfe :=_bcea .(*PSInteger );_fcfe {_beda =_eda .Push (MakeInteger (-_bcf .Val ));return _beda ;}else {return ErrTypeCheck ;};};var ErrRangeCheck =_eg .New ("\u0072\u0061\u006e\u0067\u0065\u0020\u0063\u0068\u0065\u0063\u006b\u0020e\u0072\u0072\u006f\u0072");func (_ecd *PSReal )Duplicate ()PSObject {_caf :=PSReal {};_caf .Val =_ecd .Val ;return &_caf };var ErrStackUnderflow =_eg .New ("\u0073t\u0061c\u006b\u0020\u0075\u006e\u0064\u0065\u0072\u0066\u006c\u006f\u0077");func (_gce *PSOperand )String ()string {return string (*_gce )};func (_gd *PSBoolean )DebugString ()string {return _df .Sprintf ("\u0062o\u006f\u006c\u003a\u0025\u0076",_gd .Val );};
 
 // Pop pops an object from the top of the stack.
-func (_aged *PSStack )Pop ()(PSObject ,error ){if len (*_aged )< 1{return nil ,ErrStackUnderflow ;};_gfd :=(*_aged )[len (*_aged )-1];*_aged =(*_aged )[0:len (*_aged )-1];return _gfd ,nil ;};func (_bdafe *PSOperand )eq (_fab *PSStack )error {_bac ,_eae :=_fab .Pop ();if _eae !=nil {return _eae ;};_gaf ,_eae :=_fab .Pop ();if _eae !=nil {return _eae ;};_bcc ,_dba :=_bac .(*PSBoolean );_gdd ,_gca :=_gaf .(*PSBoolean );if _dba ||_gca {var _fee error ;if _dba &&_gca {_fee =_fab .Push (MakeBool (_bcc .Val ==_gdd .Val ));}else {_fee =_fab .Push (MakeBool (false ));};return _fee ;};var _efa float64 ;var _bfc float64 ;if _feb ,_ed :=_bac .(*PSInteger );_ed {_efa =float64 (_feb .Val );}else if _cefc ,_gbe :=_bac .(*PSReal );_gbe {_efa =_cefc .Val ;}else {return ErrTypeCheck ;};if _dada ,_ebe :=_gaf .(*PSInteger );_ebe {_bfc =float64 (_dada .Val );}else if _ebf ,_afce :=_gaf .(*PSReal );_afce {_bfc =_ebf .Val ;}else {return ErrTypeCheck ;};if _c .Abs (_bfc -_efa )< _b {_eae =_fab .Push (MakeBool (true ));}else {_eae =_fab .Push (MakeBool (false ));};return _eae ;};
+func (_gfec *PSStack )Pop ()(PSObject ,error ){if len (*_gfec )< 1{return nil ,ErrStackUnderflow ;};_cecf :=(*_gfec )[len (*_gfec )-1];*_gfec =(*_gfec )[0:len (*_gfec )-1];return _cecf ,nil ;};
 
 // PopNumberAsFloat64 pops and return the numeric value of the top of the stack as a float64.
 // Real or integer only.
-func (_ebba *PSStack )PopNumberAsFloat64 ()(float64 ,error ){_dcec ,_edg :=_ebba .Pop ();if _edg !=nil {return 0,_edg ;};if _gga ,_fdc :=_dcec .(*PSReal );_fdc {return _gga .Val ,nil ;}else if _fcdf ,_dcea :=_dcec .(*PSInteger );_dcea {return float64 (_fcdf .Val ),nil ;}else {return 0,ErrTypeCheck ;};};
+func (_gcbe *PSStack )PopNumberAsFloat64 ()(float64 ,error ){_aaca ,_cbbd :=_gcbe .Pop ();if _cbbd !=nil {return 0,_cbbd ;};if _adf ,_cacd :=_aaca .(*PSReal );_cacd {return _adf .Val ,nil ;}else if _gcc ,_cagc :=_aaca .(*PSInteger );_cagc {return float64 (_gcc .Val ),nil ;}else {return 0,ErrTypeCheck ;};};
 
-// MakeOperand returns a new PSOperand object based on string `val`.
-func MakeOperand (val string )*PSOperand {_cdgb :=PSOperand (val );return &_cdgb };
+// PSExecutor has its own execution stack and is used to executre a PS routine (program).
+type PSExecutor struct{Stack *PSStack ;_g *PSProgram ;};
 
-// PSReal represents a real number.
-type PSReal struct{Val float64 ;};var ErrTypeCheck =_g .New ("\u0074\u0079p\u0065\u0020\u0063h\u0065\u0063\u006b\u0020\u0065\u0072\u0072\u006f\u0072");func (_dega *PSParser )skipSpaces ()(int ,error ){_badb :=0;for {_ddad ,_cbgdc :=_dega ._bcgg .Peek (1);if _cbgdc !=nil {return 0,_cbgdc ;};if _df .IsWhiteSpace (_ddad [0]){_dega ._bcgg .ReadByte ();_badb ++;}else {break ;};};return _badb ,nil ;};
+// NewPSStack returns an initialized PSStack.
+func NewPSStack ()*PSStack {return &PSStack {}};func (_ddce *PSOperand )exp (_ded *PSStack )error {_bbfb ,_bbadb :=_ded .PopNumberAsFloat64 ();if _bbadb !=nil {return _bbadb ;};_cdd ,_bbadb :=_ded .PopNumberAsFloat64 ();if _bbadb !=nil {return _bbadb ;};if _ca .Abs (_bbfb )< 1&&_cdd < 0{return ErrUndefinedResult ;};_abba :=_ca .Pow (_cdd ,_bbfb );_bbadb =_ded .Push (MakeReal (_abba ));return _bbadb ;};
 
-// MakeBool returns a new PSBoolean object initialized with `val`.
-func MakeBool (val bool )*PSBoolean {_cfde :=PSBoolean {};_cfde .Val =val ;return &_cfde };func (_gd *PSOperand )DebugString ()string {return _dg .Sprintf ("\u006fp\u003a\u0027\u0025\u0073\u0027",*_gd );};func (_bdec *PSOperand )or (_bacf *PSStack )error {_dac ,_dbgb :=_bacf .Pop ();if _dbgb !=nil {return _dbgb ;};_eedb ,_dbgb :=_bacf .Pop ();if _dbgb !=nil {return _dbgb ;};if _ccd ,_eccea :=_dac .(*PSBoolean );_eccea {_fed ,_adcc :=_eedb .(*PSBoolean );if !_adcc {return ErrTypeCheck ;};_dbgb =_bacf .Push (MakeBool (_ccd .Val ||_fed .Val ));return _dbgb ;};if _gaff ,_bebc :=_dac .(*PSInteger );_bebc {_cfcf ,_bgfb :=_eedb .(*PSInteger );if !_bgfb {return ErrTypeCheck ;};_dbgb =_bacf .Push (MakeInteger (_gaff .Val |_cfcf .Val ));return _dbgb ;};return ErrTypeCheck ;};func (_bba *PSOperand )ne (_ede *PSStack )error {_adbg :=_bba .eq (_ede );if _adbg !=nil {return _adbg ;};_adbg =_bba .not (_ede );return _adbg ;};func (_ced *PSOperand )cvr (_cfaf *PSStack )error {_afb ,_aff :=_cfaf .Pop ();if _aff !=nil {return _aff ;};if _gag ,_dea :=_afb .(*PSReal );_dea {_aff =_cfaf .Push (MakeReal (_gag .Val ));}else if _bc ,_bfad :=_afb .(*PSInteger );_bfad {_aff =_cfaf .Push (MakeReal (float64 (_bc .Val )));}else {return ErrTypeCheck ;};return _aff ;};
+// Parse parses the postscript and store as a program that can be executed.
+func (_defd *PSParser )Parse ()(*PSProgram ,error ){_defd .skipSpaces ();_cefb ,_egge :=_defd ._dcaf .Peek (2);if _egge !=nil {return nil ,_egge ;};if _cefb [0]!='{'{return nil ,_eg .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0050\u0053\u0020\u0050\u0072\u006f\u0067\u0072\u0061\u006d\u0020\u006e\u006f\u0074\u0020\u0073t\u0061\u0072\u0074\u0069\u006eg\u0020\u0077i\u0074\u0068\u0020\u007b");};_bec ,_egge :=_defd .parseFunction ();if _egge !=nil &&_egge !=_d .EOF {return nil ,_egge ;};return _bec ,_egge ;};func (_dfed *PSOperand )ge (_fgg *PSStack )error {_cfd ,_add :=_fgg .PopNumberAsFloat64 ();if _add !=nil {return _add ;};_dcd ,_add :=_fgg .PopNumberAsFloat64 ();if _add !=nil {return _add ;};if _ca .Abs (_dcd -_cfd )< _b {_cdf :=_fgg .Push (MakeBool (true ));return _cdf ;}else if _dcd > _cfd {_fdc :=_fgg .Push (MakeBool (true ));return _fdc ;}else {_bfg :=_fgg .Push (MakeBool (false ));return _bfg ;};};func (_fbac *PSOperand )not (_ead *PSStack )error {_ggbg ,_gcbg :=_ead .Pop ();if _gcbg !=nil {return _gcbg ;};if _addd ,_gbc :=_ggbg .(*PSBoolean );_gbc {_gcbg =_ead .Push (MakeBool (!_addd .Val ));return _gcbg ;}else if _aga ,_bffbb :=_ggbg .(*PSInteger );_bffbb {_gcbg =_ead .Push (MakeInteger (^_aga .Val ));return _gcbg ;}else {return ErrTypeCheck ;};};func (_eba *PSOperand )abs (_bae *PSStack )error {_ab ,_beg :=_bae .Pop ();if _beg !=nil {return _beg ;};if _eef ,_dge :=_ab .(*PSReal );_dge {_bcb :=_eef .Val ;if _bcb < 0{_beg =_bae .Push (MakeReal (-_bcb ));}else {_beg =_bae .Push (MakeReal (_bcb ));};}else if _ceb ,_ceg :=_ab .(*PSInteger );_ceg {_cec :=_ceb .Val ;if _cec < 0{_beg =_bae .Push (MakeInteger (-_cec ));}else {_beg =_bae .Push (MakeInteger (_cec ));};}else {return ErrTypeCheck ;};return _beg ;};func (_be *PSInteger )DebugString ()string {return _df .Sprintf ("\u0069\u006e\u0074\u003a\u0025\u0064",_be .Val );};func (_dfea *PSOperand )exch (_ccg *PSStack )error {_dad ,_badb :=_ccg .Pop ();if _badb !=nil {return _badb ;};_bged ,_badb :=_ccg .Pop ();if _badb !=nil {return _badb ;};_badb =_ccg .Push (_dad );if _badb !=nil {return _badb ;};_badb =_ccg .Push (_bged );return _badb ;};func (_cfa *PSOperand )idiv (_bdg *PSStack )error {_ebe ,_bdgc :=_bdg .Pop ();if _bdgc !=nil {return _bdgc ;};_dcf ,_bdgc :=_bdg .Pop ();if _bdgc !=nil {return _bdgc ;};_cef ,_cabc :=_ebe .(*PSInteger );if !_cabc {return ErrTypeCheck ;};if _cef .Val ==0{return ErrUndefinedResult ;};_gbb ,_cabc :=_dcf .(*PSInteger );if !_cabc {return ErrTypeCheck ;};_fag :=_gbb .Val /_cef .Val ;_bdgc =_bdg .Push (MakeInteger (_fag ));return _bdgc ;};func (_bege *PSParser )parseOperand ()(*PSOperand ,error ){var _bcge []byte ;for {_dbcf ,_cbef :=_bege ._dcaf .Peek (1);if _cbef !=nil {if _cbef ==_d .EOF {break ;};return nil ,_cbef ;};if _f .IsDelimiter (_dbcf [0]){break ;};if _f .IsWhiteSpace (_dbcf [0]){break ;};_gag ,_ :=_bege ._dcaf .ReadByte ();_bcge =append (_bcge ,_gag );};if len (_bcge )==0{return nil ,_eg .New ("\u0069\u006e\u0076al\u0069\u0064\u0020\u006f\u0070\u0065\u0072\u0061\u006e\u0064\u0020\u0028\u0065\u006d\u0070\u0074\u0079\u0029");};return MakeOperand (string (_bcge )),nil ;};func (_ccff *PSOperand )truncate (_bcg *PSStack )error {_acfc ,_ffc :=_bcg .Pop ();if _ffc !=nil {return _ffc ;};if _babb ,_fbefa :=_acfc .(*PSReal );_fbefa {_begd :=int (_babb .Val );_ffc =_bcg .Push (MakeReal (float64 (_begd )));}else if _fcgg ,_eaf :=_acfc .(*PSInteger );_eaf {_ffc =_bcg .Push (MakeInteger (_fcgg .Val ));}else {return ErrTypeCheck ;};return _ffc ;};
 
-// NewPSProgram returns an empty, initialized PSProgram.
-func NewPSProgram ()*PSProgram {return &PSProgram {}};
+// Append appends an object to the PSProgram.
+func (_fdd *PSProgram )Append (obj PSObject ){*_fdd =append (*_fdd ,obj )};
+
+// Push pushes an object on top of the stack.
+func (_aad *PSStack )Push (obj PSObject )error {if len (*_aad )> 100{return ErrStackOverflow ;};*_aad =append (*_aad ,obj );return nil ;};
+
+// PSInteger represents an integer.
+type PSInteger struct{Val int ;};var ErrStackOverflow =_eg .New ("\u0073\u0074\u0061\u0063\u006b\u0020\u006f\u0076\u0065r\u0066\u006c\u006f\u0077");
+
+// PSOperand represents a Postscript operand (text string).
+type PSOperand string ;func (_cda *PSOperand )ceiling (_fec *PSStack )error {_gddg ,_ed :=_fec .Pop ();if _ed !=nil {return _ed ;};if _dgcg ,_dec :=_gddg .(*PSReal );_dec {_ed =_fec .Push (MakeReal (_ca .Ceil (_dgcg .Val )));}else if _efg ,_gbe :=_gddg .(*PSInteger );_gbe {_ed =_fec .Push (MakeInteger (_efg .Val ));}else {_ed =ErrTypeCheck ;};return _ed ;};func (_cfc *PSOperand )add (_ddf *PSStack )error {_fe ,_dfce :=_ddf .Pop ();if _dfce !=nil {return _dfce ;};_bfc ,_dfce :=_ddf .Pop ();if _dfce !=nil {return _dfce ;};_fba ,_fc :=_fe .(*PSReal );_bd ,_dfe :=_fe .(*PSInteger );if !_fc &&!_dfe {return ErrTypeCheck ;};_fbae ,_dbg :=_bfc .(*PSReal );_cgd ,_fbb :=_bfc .(*PSInteger );if !_dbg &&!_fbb {return ErrTypeCheck ;};if _dfe &&_fbb {_ag :=_bd .Val +_cgd .Val ;_egb :=_ddf .Push (MakeInteger (_ag ));return _egb ;};var _dgb float64 ;if _fc {_dgb =_fba .Val ;}else {_dgb =float64 (_bd .Val );};if _dbg {_dgb +=_fbae .Val ;}else {_dgb +=float64 (_cgd .Val );};_dfce =_ddf .Push (MakeReal (_dgb ));return _dfce ;};var ErrTypeCheck =_eg .New ("\u0074\u0079p\u0065\u0020\u0063h\u0065\u0063\u006b\u0020\u0065\u0072\u0072\u006f\u0072");func (_dfc *PSReal )String ()string {return _df .Sprintf ("\u0025\u002e\u0035\u0066",_dfc .Val )};
+
+// NewPSExecutor returns an initialized PSExecutor for an input `program`.
+func NewPSExecutor (program *PSProgram )*PSExecutor {_ce :=&PSExecutor {};_ce .Stack =NewPSStack ();_ce ._g =program ;return _ce ;};func (_fgd *PSOperand )cvi (_fa *PSStack )error {_cegf ,_bgf :=_fa .Pop ();if _bgf !=nil {return _bgf ;};if _dfd ,_gbd :=_cegf .(*PSReal );_gbd {_fee :=int (_dfd .Val );_bgf =_fa .Push (MakeInteger (_fee ));}else if _gef ,_abb :=_cegf .(*PSInteger );_abb {_gea :=_gef .Val ;_bgf =_fa .Push (MakeInteger (_gea ));}else {return ErrTypeCheck ;};return _bgf ;};func (_cdag *PSOperand )xor (_eddb *PSStack )error {_bada ,_feb :=_eddb .Pop ();if _feb !=nil {return _feb ;};_gda ,_feb :=_eddb .Pop ();if _feb !=nil {return _feb ;};if _cfcc ,_defb :=_bada .(*PSBoolean );_defb {_bfd ,_gddgf :=_gda .(*PSBoolean );if !_gddgf {return ErrTypeCheck ;};_feb =_eddb .Push (MakeBool (_cfcc .Val !=_bfd .Val ));return _feb ;};if _dca ,_babd :=_bada .(*PSInteger );_babd {_fef ,_bfge :=_gda .(*PSInteger );if !_bfge {return ErrTypeCheck ;};_feb =_eddb .Push (MakeInteger (_dca .Val ^_fef .Val ));return _feb ;};return ErrTypeCheck ;};
+
+// NewPSParser returns a new instance of the PDF Postscript parser from input data.
+func NewPSParser (content []byte )*PSParser {_aafad :=PSParser {};_ceec :=_db .NewBuffer (content );_aafad ._dcaf =_c .NewReader (_ceec );return &_aafad ;};
 
 // PSObjectArrayToFloat64Array converts []PSObject into a []float64 array. Each PSObject must represent a number,
 // otherwise a ErrTypeCheck error occurs.
-func PSObjectArrayToFloat64Array (objects []PSObject )([]float64 ,error ){var _gb []float64 ;for _ ,_gf :=range objects {if _fa ,_fb :=_gf .(*PSInteger );_fb {_gb =append (_gb ,float64 (_fa .Val ));}else if _ag ,_cf :=_gf .(*PSReal );_cf {_gb =append (_gb ,_ag .Val );}else {return nil ,ErrTypeCheck ;};};return _gb ,nil ;};
-
-// PSExecutor has its own execution stack and is used to executre a PS routine (program).
-type PSExecutor struct{Stack *PSStack ;_bf *PSProgram ;};func (_abbg *PSOperand )ge (_dfae *PSStack )error {_dce ,_ddc :=_dfae .PopNumberAsFloat64 ();if _ddc !=nil {return _ddc ;};_fcc ,_ddc :=_dfae .PopNumberAsFloat64 ();if _ddc !=nil {return _ddc ;};if _c .Abs (_fcc -_dce )< _b {_abf :=_dfae .Push (MakeBool (true ));return _abf ;}else if _fcc > _dce {_fgg :=_dfae .Push (MakeBool (true ));return _fgg ;}else {_dedd :=_dfae .Push (MakeBool (false ));return _dedd ;};};func (_efe *PSBoolean )DebugString ()string {return _dg .Sprintf ("\u0062o\u006f\u006c\u003a\u0025\u0076",_efe .Val );};
-
-// MakeReal returns a new PSReal object initialized with `val`.
-func MakeReal (val float64 )*PSReal {_add :=PSReal {};_add .Val =val ;return &_add };
-
-// Empty empties the stack.
-func (_bcf *PSStack )Empty (){*_bcf =[]PSObject {}};
-
-// Execute executes the program for an input parameters `objects` and returns a slice of output objects.
-func (_de *PSExecutor )Execute (objects []PSObject )([]PSObject ,error ){for _ ,_bd :=range objects {_cd :=_de .Stack .Push (_bd );if _cd !=nil {return nil ,_cd ;};};_cfe :=_de ._bf .Exec (_de .Stack );if _cfe !=nil {_f .Log .Debug ("\u0045x\u0065c\u0020\u0066\u0061\u0069\u006c\u0065\u0064\u003a\u0020\u0025\u0076",_cfe );return nil ,_cfe ;};_dfa :=[]PSObject (*_de .Stack );_de .Stack .Empty ();return _dfa ,nil ;};func (_cg *PSOperand )exp (_gddf *PSStack )error {_ca ,_gagb :=_gddf .PopNumberAsFloat64 ();if _gagb !=nil {return _gagb ;};_egg ,_gagb :=_gddf .PopNumberAsFloat64 ();if _gagb !=nil {return _gagb ;};if _c .Abs (_ca )< 1&&_egg < 0{return ErrUndefinedResult ;};_ac :=_c .Pow (_egg ,_ca );_gagb =_gddf .Push (MakeReal (_ac ));return _gagb ;};func (_adb *PSOperand )ln (_eccf *PSStack )error {_fdd ,_fbe :=_eccf .PopNumberAsFloat64 ();if _fbe !=nil {return _fbe ;};_ffe :=_c .Log (_fdd );_fbe =_eccf .Push (MakeReal (_ffe ));return _fbe ;};func (_cfa *PSOperand )abs (_ecc *PSStack )error {_ecce ,_aac :=_ecc .Pop ();if _aac !=nil {return _aac ;};if _aba ,_abe :=_ecce .(*PSReal );_abe {_ad :=_aba .Val ;if _ad < 0{_aac =_ecc .Push (MakeReal (-_ad ));}else {_aac =_ecc .Push (MakeReal (_ad ));};}else if _bb ,_gcd :=_ecce .(*PSInteger );_gcd {_eff :=_bb .Val ;if _eff < 0{_aac =_ecc .Push (MakeInteger (-_eff ));}else {_aac =_ecc .Push (MakeInteger (_eff ));};}else {return ErrTypeCheck ;};return _aac ;};func (_ab *PSProgram )Duplicate ()PSObject {_fg :=&PSProgram {};for _ ,_ba :=range *_ab {_fg .Append (_ba .Duplicate ());};return _fg ;};func (_dc *PSProgram )String ()string {_efc :="\u007b\u0020";for _ ,_bfa :=range *_dc {_efc +=_bfa .String ();_efc +="\u0020";};_efc +="\u007d";return _efc ;};
-
-// PSStack defines a stack of PSObjects. PSObjects can be pushed on or pull from the stack.
-type PSStack []PSObject ;var ErrStackOverflow =_g .New ("\u0073\u0074\u0061\u0063\u006b\u0020\u006f\u0076\u0065r\u0066\u006c\u006f\u0077");var ErrRangeCheck =_g .New ("\u0072\u0061\u006e\u0067\u0065\u0020\u0063\u0068\u0065\u0063\u006b\u0020e\u0072\u0072\u006f\u0072");func (_dbc *PSOperand )le (_bgf *PSStack )error {_dbe ,_agb :=_bgf .PopNumberAsFloat64 ();if _agb !=nil {return _agb ;};_ebc ,_agb :=_bgf .PopNumberAsFloat64 ();if _agb !=nil {return _agb ;};if _c .Abs (_ebc -_dbe )< _b {_fcda :=_bgf .Push (MakeBool (true ));return _fcda ;}else if _ebc < _dbe {_ecg :=_bgf .Push (MakeBool (true ));return _ecg ;}else {_bea :=_bgf .Push (MakeBool (false ));return _bea ;};};
+func PSObjectArrayToFloat64Array (objects []PSObject )([]float64 ,error ){var _dgf []float64 ;for _ ,_ggc :=range objects {if _da ,_cc :=_ggc .(*PSInteger );_cc {_dgf =append (_dgf ,float64 (_da .Val ));}else if _fg ,_gc :=_ggc .(*PSReal );_gc {_dgf =append (_dgf ,_fg .Val );}else {return nil ,ErrTypeCheck ;};};return _dgf ,nil ;};
 
 // String returns a string representation of the stack.
-func (_fce *PSStack )String ()string {_adg :="\u005b\u0020";for _ ,_aada :=range *_fce {_adg +=_aada .String ();_adg +="\u0020";};_adg +="\u005d";return _adg ;};func (_ga *PSOperand )String ()string {return _dg .Sprintf ("\u0025\u0073",*_ga )};func (_ffdd *PSOperand )gt (_cdg *PSStack )error {_ddca ,_cdc :=_cdg .PopNumberAsFloat64 ();if _cdc !=nil {return _cdc ;};_gega ,_cdc :=_cdg .PopNumberAsFloat64 ();if _cdc !=nil {return _cdc ;};if _c .Abs (_gega -_ddca )< _b {_gddb :=_cdg .Push (MakeBool (false ));return _gddb ;}else if _gega > _ddca {_fcga :=_cdg .Push (MakeBool (true ));return _fcga ;}else {_cb :=_cdg .Push (MakeBool (false ));return _cb ;};};
-
-// PSProgram defines a Postscript program which is a series of PS objects (arguments, commands, programs etc).
-type PSProgram []PSObject ;func (_bgbc *PSOperand )ifelse (_gdda *PSStack )error {_dead ,_bee :=_gdda .Pop ();if _bee !=nil {return _bee ;};_eca ,_bee :=_gdda .Pop ();if _bee !=nil {return _bee ;};_cec ,_bee :=_gdda .Pop ();if _bee !=nil {return _bee ;};_bdc ,_cefa :=_dead .(*PSProgram );if !_cefa {return ErrTypeCheck ;};_bfbc ,_cefa :=_eca .(*PSProgram );if !_cefa {return ErrTypeCheck ;};_eegc ,_cefa :=_cec .(*PSBoolean );if !_cefa {return ErrTypeCheck ;};if _eegc .Val {_fdec :=_bfbc .Exec (_gdda );return _fdec ;};_bee =_bdc .Exec (_gdda );return _bee ;};func (_ece *PSOperand )lt (_cbf *PSStack )error {_eaa ,_beee :=_cbf .PopNumberAsFloat64 ();if _beee !=nil {return _beee ;};_ffab ,_beee :=_cbf .PopNumberAsFloat64 ();if _beee !=nil {return _beee ;};if _c .Abs (_ffab -_eaa )< _b {_cfc :=_cbf .Push (MakeBool (false ));return _cfc ;}else if _ffab < _eaa {_bgbe :=_cbf .Push (MakeBool (true ));return _bgbe ;}else {_dgcb :=_cbf .Push (MakeBool (false ));return _dgcb ;};};func (_aab *PSOperand )mod (_ead *PSStack )error {_afa ,_gdg :=_ead .Pop ();if _gdg !=nil {return _gdg ;};_bdcf ,_gdg :=_ead .Pop ();if _gdg !=nil {return _gdg ;};_aegb ,_deec :=_afa .(*PSInteger );if !_deec {return ErrTypeCheck ;};if _aegb .Val ==0{return ErrUndefinedResult ;};_aedc ,_deec :=_bdcf .(*PSInteger );if !_deec {return ErrTypeCheck ;};_dbgg :=_aedc .Val %_aegb .Val ;_gdg =_ead .Push (MakeInteger (_dbgg ));return _gdg ;};func (_bda *PSOperand )ceiling (_fga *PSStack )error {_gbc ,_adf :=_fga .Pop ();if _adf !=nil {return _adf ;};if _ee ,_dga :=_gbc .(*PSReal );_dga {_adf =_fga .Push (MakeReal (_c .Ceil (_ee .Val )));}else if _dad ,_bdaf :=_gbc .(*PSInteger );_bdaf {_adf =_fga .Push (MakeInteger (_dad .Val ));}else {_adf =ErrTypeCheck ;};return _adf ;};func (_ec *PSBoolean )String ()string {return _dg .Sprintf ("\u0025\u0076",_ec .Val )};
-
-// Exec executes the operand `op` in the state specified by `stack`.
-func (_ded *PSOperand )Exec (stack *PSStack )error {_gea :=ErrUnsupportedOperand ;switch *_ded {case "\u0061\u0062\u0073":_gea =_ded .abs (stack );case "\u0061\u0064\u0064":_gea =_ded .add (stack );case "\u0061\u006e\u0064":_gea =_ded .and (stack );case "\u0061\u0074\u0061\u006e":_gea =_ded .atan (stack );case "\u0062\u0069\u0074\u0073\u0068\u0069\u0066\u0074":_gea =_ded .bitshift (stack );case "\u0063e\u0069\u006c\u0069\u006e\u0067":_gea =_ded .ceiling (stack );case "\u0063\u006f\u0070\u0079":_gea =_ded .copy (stack );case "\u0063\u006f\u0073":_gea =_ded .cos (stack );case "\u0063\u0076\u0069":_gea =_ded .cvi (stack );case "\u0063\u0076\u0072":_gea =_ded .cvr (stack );case "\u0064\u0069\u0076":_gea =_ded .div (stack );case "\u0064\u0075\u0070":_gea =_ded .dup (stack );case "\u0065\u0071":_gea =_ded .eq (stack );case "\u0065\u0078\u0063\u0068":_gea =_ded .exch (stack );case "\u0065\u0078\u0070":_gea =_ded .exp (stack );case "\u0066\u006c\u006fo\u0072":_gea =_ded .floor (stack );case "\u0067\u0065":_gea =_ded .ge (stack );case "\u0067\u0074":_gea =_ded .gt (stack );case "\u0069\u0064\u0069\u0076":_gea =_ded .idiv (stack );case "\u0069\u0066":_gea =_ded .ifCondition (stack );case "\u0069\u0066\u0065\u006c\u0073\u0065":_gea =_ded .ifelse (stack );case "\u0069\u006e\u0064e\u0078":_gea =_ded .index (stack );case "\u006c\u0065":_gea =_ded .le (stack );case "\u006c\u006f\u0067":_gea =_ded .log (stack );case "\u006c\u006e":_gea =_ded .ln (stack );case "\u006c\u0074":_gea =_ded .lt (stack );case "\u006d\u006f\u0064":_gea =_ded .mod (stack );case "\u006d\u0075\u006c":_gea =_ded .mul (stack );case "\u006e\u0065":_gea =_ded .ne (stack );case "\u006e\u0065\u0067":_gea =_ded .neg (stack );case "\u006e\u006f\u0074":_gea =_ded .not (stack );case "\u006f\u0072":_gea =_ded .or (stack );case "\u0070\u006f\u0070":_gea =_ded .pop (stack );case "\u0072\u006f\u0075n\u0064":_gea =_ded .round (stack );case "\u0072\u006f\u006c\u006c":_gea =_ded .roll (stack );case "\u0073\u0069\u006e":_gea =_ded .sin (stack );case "\u0073\u0071\u0072\u0074":_gea =_ded .sqrt (stack );case "\u0073\u0075\u0062":_gea =_ded .sub (stack );case "\u0074\u0072\u0075\u006e\u0063\u0061\u0074\u0065":_gea =_ded .truncate (stack );case "\u0078\u006f\u0072":_gea =_ded .xor (stack );};return _gea ;};func (_afc *PSReal )DebugString ()string {return _dg .Sprintf ("\u0072e\u0061\u006c\u003a\u0025\u002e\u0035f",_afc .Val );};func (_eag *PSOperand )sin (_cegd *PSStack )error {_ade ,_gfa :=_cegd .PopNumberAsFloat64 ();if _gfa !=nil {return _gfa ;};_bcd :=_c .Sin (_ade *_c .Pi /180.0);_gfa =_cegd .Push (MakeReal (_bcd ));return _gfa ;};
-
-// NewPSExecutor returns an initialized PSExecutor for an input `program`.
-func NewPSExecutor (program *PSProgram )*PSExecutor {_ge :=&PSExecutor {};_ge .Stack =NewPSStack ();_ge ._bf =program ;return _ge ;};
-
-// NewPSParser returns a new instance of the PDF Postscript parser from input data.
-func NewPSParser (content []byte )*PSParser {_fedc :=PSParser {};_dbb :=_a .NewBuffer (content );_fedc ._bcgg =_ef .NewReader (_dbb );return &_fedc ;};func (_afcee *PSOperand )sqrt (_eeb *PSStack )error {_egd ,_bga :=_eeb .PopNumberAsFloat64 ();if _bga !=nil {return _bga ;};if _egd < 0{return ErrRangeCheck ;};_bgg :=_c .Sqrt (_egd );_bga =_eeb .Push (MakeReal (_bgg ));return _bga ;};
+func (_dfcf *PSStack )String ()string {_ffa :="\u005b\u0020";for _ ,_cfcg :=range *_dfcf {_ffa +=_cfcg .String ();_ffa +="\u0020";};_ffa +="\u005d";return _ffa ;};var ErrUnsupportedOperand =_eg .New ("\u0075\u006e\u0073\u0075pp\u006f\u0072\u0074\u0065\u0064\u0020\u006f\u0070\u0065\u0072\u0061\u006e\u0064");func _ggbb (_dffb int )int {if _dffb < 0{return -_dffb ;};return _dffb ;};func (_gcae *PSOperand )log (_cfde *PSStack )error {_gaf ,_aafa :=_cfde .PopNumberAsFloat64 ();if _aafa !=nil {return _aafa ;};_fbd :=_ca .Log10 (_gaf );_aafa =_cfde .Push (MakeReal (_fbd ));return _aafa ;};func (_ddc *PSReal )DebugString ()string {return _df .Sprintf ("\u0072e\u0061\u006c\u003a\u0025\u002e\u0035f",_ddc .Val );};func (_de *PSOperand )Duplicate ()PSObject {_gga :=*_de ;return &_gga };
 
 // Exec executes the program, typically leaving output values on the stack.
-func (_fe *PSProgram )Exec (stack *PSStack )error {for _ ,_aad :=range *_fe {var _fbg error ;switch _dee :=_aad .(type ){case *PSInteger :_dbg :=_dee ;_fbg =stack .Push (_dbg );case *PSReal :_ceg :=_dee ;_fbg =stack .Push (_ceg );case *PSBoolean :_bff :=_dee ;_fbg =stack .Push (_bff );case *PSProgram :_ddb :=_dee ;_fbg =stack .Push (_ddb );case *PSOperand :_efgf :=_dee ;_fbg =_efgf .Exec (stack );default:return ErrTypeCheck ;};if _fbg !=nil {return _fbg ;};};return nil ;};func (_bg *PSReal )Duplicate ()PSObject {_dgc :=PSReal {};_dgc .Val =_bg .Val ;return &_dgc };func (_gbf *PSOperand )not (_gcf *PSStack )error {_acc ,_dgba :=_gcf .Pop ();if _dgba !=nil {return _dgba ;};if _dbac ,_afag :=_acc .(*PSBoolean );_afag {_dgba =_gcf .Push (MakeBool (!_dbac .Val ));return _dgba ;}else if _cefg ,_cfcb :=_acc .(*PSInteger );_cfcb {_dgba =_gcf .Push (MakeInteger (^_cefg .Val ));return _dgba ;}else {return ErrTypeCheck ;};};func (_eb *PSOperand )div (_bed *PSStack )error {_fba ,_fdg :=_bed .Pop ();if _fdg !=nil {return _fdg ;};_cea ,_fdg :=_bed .Pop ();if _fdg !=nil {return _fdg ;};_dgag ,_cca :=_fba .(*PSReal );_affe ,_efb :=_fba .(*PSInteger );if !_cca &&!_efb {return ErrTypeCheck ;};if _cca &&_dgag .Val ==0{return ErrUndefinedResult ;};if _efb &&_affe .Val ==0{return ErrUndefinedResult ;};_eccd ,_gfeg :=_cea .(*PSReal );_gfg ,_gbg :=_cea .(*PSInteger );if !_gfeg &&!_gbg {return ErrTypeCheck ;};var _bag float64 =0;if _gfeg {_bag =_eccd .Val ;}else {_bag =float64 (_gfg .Val );};if _cca {_bag /=_dgag .Val ;}else {_bag /=float64 (_affe .Val );};_fdg =_bed .Push (MakeReal (_bag ));return _fdg ;};
-
-// PSInteger represents an integer.
-type PSInteger struct{Val int ;};func (_dfadg *PSOperand )dup (_fcg *PSStack )error {_ddd ,_ggd :=_fcg .Pop ();if _ggd !=nil {return _ggd ;};_ggd =_fcg .Push (_ddd );if _ggd !=nil {return _ggd ;};_ggd =_fcg .Push (_ddd .Duplicate ());return _ggd ;};
-
-// PSBoolean represents a boolean value.
-type PSBoolean struct{Val bool ;};func (_dca *PSOperand )atan (_be *PSStack )error {_bad ,_cdf :=_be .PopNumberAsFloat64 ();if _cdf !=nil {return _cdf ;};_gce ,_cdf :=_be .PopNumberAsFloat64 ();if _cdf !=nil {return _cdf ;};if _bad ==0{var _cef error ;if _gce < 0{_cef =_be .Push (MakeReal (270));}else {_cef =_be .Push (MakeReal (90));};return _cef ;};_afd :=_gce /_bad ;_ggf :=_c .Atan (_afd )*180/_c .Pi ;_cdf =_be .Push (MakeReal (_ggf ));return _cdf ;};const _b =0.000001;func (_db *PSInteger )Duplicate ()PSObject {_ea :=PSInteger {};_ea .Val =_db .Val ;return &_ea };func (_fbgf *PSOperand )cos (_ccc *PSStack )error {_aadf ,_eacd :=_ccc .PopNumberAsFloat64 ();if _eacd !=nil {return _eacd ;};_agd :=_c .Cos (_aadf *_c .Pi /180.0);_eacd =_ccc .Push (MakeReal (_agd ));return _eacd ;};func (_agcg *PSOperand )index (_fec *PSStack )error {_gab ,_fcd :=_fec .Pop ();if _fcd !=nil {return _fcd ;};_bbd ,_ecf :=_gab .(*PSInteger );if !_ecf {return ErrTypeCheck ;};if _bbd .Val < 0{return ErrRangeCheck ;};if _bbd .Val > len (*_fec )-1{return ErrStackUnderflow ;};_fcf :=(*_fec )[len (*_fec )-1-_bbd .Val ];_fcd =_fec .Push (_fcf .Duplicate ());return _fcd ;};
-
-// PSParser is a basic Postscript parser.
-type PSParser struct{_bcgg *_ef .Reader };func (_edc *PSOperand )floor (_fabb *PSStack )error {_bcg ,_cge :=_fabb .Pop ();if _cge !=nil {return _cge ;};if _edb ,_fafb :=_bcg .(*PSReal );_fafb {_cge =_fabb .Push (MakeReal (_c .Floor (_edb .Val )));}else if _cfbc ,_bffb :=_bcg .(*PSInteger );_bffb {_cge =_fabb .Push (MakeInteger (_cfbc .Val ));}else {return ErrTypeCheck ;};return _cge ;};func (_eg *PSOperand )Duplicate ()PSObject {_cdb :=*_eg ;return &_cdb };func (_abbd *PSParser )parseOperand ()(*PSOperand ,error ){var _abeb []byte ;for {_gcfa ,_dfff :=_abbd ._bcgg .Peek (1);if _dfff !=nil {if _dfff ==_e .EOF {break ;};return nil ,_dfff ;};if _df .IsDelimiter (_gcfa [0]){break ;};if _df .IsWhiteSpace (_gcfa [0]){break ;};_bdd ,_ :=_abbd ._bcgg .ReadByte ();_abeb =append (_abeb ,_bdd );};if len (_abeb )==0{return nil ,_g .New ("\u0069\u006e\u0076al\u0069\u0064\u0020\u006f\u0070\u0065\u0072\u0061\u006e\u0064\u0020\u0028\u0065\u006d\u0070\u0074\u0079\u0029");};return MakeOperand (string (_abeb )),nil ;};func (_bfg *PSOperand )add (_da *PSStack )error {_fbd ,_dgb :=_da .Pop ();if _dgb !=nil {return _dgb ;};_efcf ,_dgb :=_da .Pop ();if _dgb !=nil {return _dgb ;};_dcc ,_dccc :=_fbd .(*PSReal );_eac ,_aed :=_fbd .(*PSInteger );if !_dccc &&!_aed {return ErrTypeCheck ;};_eacg ,_gfc :=_efcf .(*PSReal );_efcfb ,_fad :=_efcf .(*PSInteger );if !_gfc &&!_fad {return ErrTypeCheck ;};if _aed &&_fad {_cfb :=_eac .Val +_efcfb .Val ;_dfg :=_da .Push (MakeInteger (_cfb ));return _dfg ;};var _deg float64 =0;if _dccc {_deg =_dcc .Val ;}else {_deg =float64 (_eac .Val );};if _gfc {_deg +=_eacg .Val ;}else {_deg +=float64 (_efcfb .Val );};_dgb =_da .Push (MakeReal (_deg ));return _dgb ;};func (_dgfe *PSParser )parseNumber ()(PSObject ,error ){_gbee ,_cae :=_df .ParseNumber (_dgfe ._bcgg );if _cae !=nil {return nil ,_cae ;};switch _aacb :=_gbee .(type ){case *_df .PdfObjectFloat :return MakeReal (float64 (*_aacb )),nil ;case *_df .PdfObjectInteger :return MakeInteger (int (*_aacb )),nil ;};return nil ,_dg .Errorf ("\u0075n\u0068\u0061\u006e\u0064\u006c\u0065\u0064\u0020\u006e\u0075\u006db\u0065\u0072\u0020\u0074\u0079\u0070\u0065\u0020\u0025\u0054",_gbee );};func (_cgf *PSOperand )round (_efae *PSStack )error {_ccb ,_cfaa :=_efae .Pop ();if _cfaa !=nil {return _cfaa ;};if _cedf ,_fdb :=_ccb .(*PSReal );_fdb {_cfaa =_efae .Push (MakeReal (_c .Floor (_cedf .Val +0.5)));}else if _cbe ,_cfag :=_ccb .(*PSInteger );_cfag {_cfaa =_efae .Push (MakeInteger (_cbe .Val ));}else {return ErrTypeCheck ;};return _cfaa ;};func (_dda *PSOperand )truncate (_dcac *PSStack )error {_ceae ,_ecfe :=_dcac .Pop ();if _ecfe !=nil {return _ecfe ;};if _bfd ,_dbgf :=_ceae .(*PSReal );_dbgf {_aeb :=int (_bfd .Val );_ecfe =_dcac .Push (MakeReal (float64 (_aeb )));}else if _fea ,_dace :=_ceae .(*PSInteger );_dace {_ecfe =_dcac .Push (MakeInteger (_fea .Val ));}else {return ErrTypeCheck ;};return _ecfe ;};func (_dagb *PSParser )parseBool ()(*PSBoolean ,error ){_cbb ,_eded :=_dagb ._bcgg .Peek (4);if _eded !=nil {return MakeBool (false ),_eded ;};if (len (_cbb )>=4)&&(string (_cbb [:4])=="\u0074\u0072\u0075\u0065"){_dagb ._bcgg .Discard (4);return MakeBool (true ),nil ;};_cbb ,_eded =_dagb ._bcgg .Peek (5);if _eded !=nil {return MakeBool (false ),_eded ;};if (len (_cbb )>=5)&&(string (_cbb [:5])=="\u0066\u0061\u006cs\u0065"){_dagb ._bcgg .Discard (5);return MakeBool (false ),nil ;};return MakeBool (false ),_g .New ("\u0075n\u0065\u0078\u0070\u0065c\u0074\u0065\u0064\u0020\u0062o\u006fl\u0065a\u006e\u0020\u0073\u0074\u0072\u0069\u006eg");};func (_dcf *PSOperand )neg (_cee *PSStack )error {_aca ,_efde :=_cee .Pop ();if _efde !=nil {return _efde ;};if _dgbb ,_ebab :=_aca .(*PSReal );_ebab {_efde =_cee .Push (MakeReal (-_dgbb .Val ));return _efde ;}else if _fcb ,_beb :=_aca .(*PSInteger );_beb {_efde =_cee .Push (MakeInteger (-_fcb .Val ));return _efde ;}else {return ErrTypeCheck ;};};func (_afg *PSOperand )bitshift (_ecb *PSStack )error {_aee ,_fbga :=_ecb .PopInteger ();if _fbga !=nil {return _fbga ;};_gceg ,_fbga :=_ecb .PopInteger ();if _fbga !=nil {return _fbga ;};var _dff int ;if _aee >=0{_dff =_gceg <<uint (_aee );}else {_dff =_gceg >>uint (-_aee );};_fbga =_ecb .Push (MakeInteger (_dff ));return _fbga ;};func (_gc *PSBoolean )Duplicate ()PSObject {_efg :=PSBoolean {};_efg .Val =_gc .Val ;return &_efg };func (_deeb *PSOperand )pop (_dde *PSStack )error {_ ,_afga :=_dde .Pop ();if _afga !=nil {return _afga ;};return nil ;};
+func (_ee *PSProgram )Exec (stack *PSStack )error {for _ ,_bf :=range *_ee {var _fb error ;switch _ced :=_bf .(type ){case *PSInteger :_bab :=_ced ;_fb =stack .Push (_bab );case *PSReal :_cb :=_ced ;_fb =stack .Push (_cb );case *PSBoolean :_efb :=_ced ;_fb =stack .Push (_efb );case *PSProgram :_fbe :=_ced ;_fb =stack .Push (_fbe );case *PSOperand :_cg :=_ced ;_fb =_cg .Exec (stack );default:return ErrTypeCheck ;};if _fb !=nil {return _fb ;};};return nil ;};func (_def *PSOperand )mod (_cagd *PSStack )error {_aab ,_caa :=_cagd .Pop ();if _caa !=nil {return _caa ;};_bdcg ,_caa :=_cagd .Pop ();if _caa !=nil {return _caa ;};_edf ,_faae :=_aab .(*PSInteger );if !_faae {return ErrTypeCheck ;};if _edf .Val ==0{return ErrUndefinedResult ;};_cee ,_faae :=_bdcg .(*PSInteger );if !_faae {return ErrTypeCheck ;};_aeea :=_cee .Val %_edf .Val ;_caa =_cagd .Push (MakeInteger (_aeea ));return _caa ;};func (_agb *PSOperand )cos (_aff *PSStack )error {_agbg ,_ega :=_aff .PopNumberAsFloat64 ();if _ega !=nil {return _ega ;};_bgc :=_ca .Cos (_agbg *_ca .Pi /180.0);_ega =_aff .Push (MakeReal (_bgc ));return _ega ;};func (_dbc *PSOperand )and (_bdb *PSStack )error {_gedd ,_bge :=_bdb .Pop ();if _bge !=nil {return _bge ;};_cecg ,_bge :=_bdb .Pop ();if _bge !=nil {return _bge ;};if _cga ,_dfeg :=_gedd .(*PSBoolean );_dfeg {_bfe ,_efe :=_cecg .(*PSBoolean );if !_efe {return ErrTypeCheck ;};_bge =_bdb .Push (MakeBool (_cga .Val &&_bfe .Val ));return _bge ;};if _ad ,_cbg :=_gedd .(*PSInteger );_cbg {_dba ,_gdd :=_cecg .(*PSInteger );if !_gdd {return ErrTypeCheck ;};_bge =_bdb .Push (MakeInteger (_ad .Val &_dba .Val ));return _bge ;};return ErrTypeCheck ;};