Gunnsteinn Hall
9ff2413609
Add check to ensure stream length cannot be larger than file size. Test cases updated.
2017-07-23 12:21:42 +00:00
Gunnsteinn Hall
68bca163a9
Type checking for index list elements
2017-07-23 11:47:21 +00:00
Gunnsteinn Hall
124bd10e7c
Check bounds on XRef stream index list (found by fuzzing)
2017-07-23 11:37:35 +00:00
Gunnsteinn Hall
99872f29ba
Type check for xref Prev entries added.
2017-07-23 01:54:31 +00:00
Gunnsteinn Hall
c6660b62c9
Fix test case
2017-07-22 16:46:22 +00:00
Gunnsteinn Hall
b2bb6d9836
Fixed problem found by fuzzing when Encrypt pointing to invalid reference
2017-07-22 16:44:42 +00:00
Gunnsteinn Hall
6e30b10029
Prevent recursive loop errors while tracing stream Lengths. Test case included. Fixes #80 .
2017-07-22 12:11:58 +00:00
Gunnsteinn Hall
1cf2ac4a98
Fix error return value
2017-07-22 11:17:48 +00:00
Gunnsteinn Hall
469856432b
Fix fuzz-detected problem where stream length referring to stream itself (with a test case to verify)
2017-07-21 21:31:23 +00:00
Gunnsteinn Hall
1769c68234
Add type check for Size in trailer. Fixes #77
2017-07-21 14:18:35 +00:00
Gunnsteinn Hall
5f506b7427
Fix fuzzy problems with crossrefs and add a recursive loop guard in reader (page building). Added test cases for these issues.
2017-07-21 14:12:37 +00:00
Gunnsteinn Hall
71807ecfa4
Exposed a reader function to check access rights. Fixed incorrect bit name for AccessPermissions (LimitPrintQuality->FullPrintQuality). Fix in owner password authentication. Closes #51 .
2017-07-12 09:48:16 +00:00
Gunnsteinn Hall
825c10fc3e
Fix in adding dash via content stream creator
2017-07-11 13:09:52 +00:00
Gunnsteinn Hall
10c3be8c95
Change PdfObjectDictionary from map to struct and introduce ordered keys. Syntax change. Fixes all around to accommodate changes. Also fixes in test cases. Closes #56 .
2017-07-08 21:04:13 +00:00
Gunnsteinn Hall
53b9e8b99c
Convenience functions to create streams and indirect objects.
2017-06-28 15:14:25 +00:00
Gunnsteinn Hall
a80d617bc7
Handle null filter as raw data. Closes #48 .
2017-05-10 10:21:46 +00:00
Gunnsteinn Hall
5c5ad1bc14
Enhancements to tolerate more malformed PDFs. Fixes #47
2017-04-27 22:25:00 +00:00
Gunnsteinn Hall
3f4e84a2e4
Improved xref rebuild repair procedure. Closes #45 .
2017-04-26 23:11:35 +00:00
Gunnsteinn Hall
532f564b3a
EOF marker seek more forgiving #46
2017-04-26 08:53:18 +00:00
Gunnsteinn Hall
d25fa23fb0
Fix issue with unremoved AES decrypted padding bytes #44
2017-04-24 21:36:07 +00:00
Gunnsteinn Hall
784a60e42b
Encoding fixes for images
...
Support avg, paeth predictors for decoding. Special error flag for
unsupported error parameters. Support specifying encoder when creating
new image objects (inline,xobject).
2017-04-19 11:46:53 +00:00
Gunnsteinn Hall
ce836c6f71
Support for Pattern, Shading objects. Various fixes and enhancements.
2017-04-04 05:51:58 +00:00
Gunnsteinn Hall
90caacec66
Improved crypto handling for encrypt dicts with references
2017-03-29 15:54:50 +00:00
Peter Williams
5e0baec137
Parse floating point numbers correctly in content streams e.g. .1 .1 .2 RG
2017-03-29 17:31:46 +11:00
Gunnsteinn Hall
ec5ad27789
Minor fixes, initial interface for creating new annotations.
2017-03-24 11:31:20 +00:00
Gunnsteinn Hall
8ae4f6a63a
Initial implementation of a simple graphics state handler / content stream processor. Multiple changes and fixes in colorspace handling. And more.
2017-03-14 13:04:51 +00:00
Gunnsteinn Hall
0e56876030
Repair for broken pdfs with too long stream lengths
2017-03-08 19:59:29 +00:00
Gunnsteinn Hall
5e2931f493
Fix predictor handling for LZW too
2017-03-08 16:56:29 +00:00
Gunnsteinn Hall
fa47660fc6
Predictor encoding handling fix
2017-03-08 16:48:40 +00:00
Gunnsteinn Hall
74c0da0ad7
Part of last commit
2017-03-05 22:42:30 +00:00
Gunnsteinn Hall
ae934afa19
Fixes in CMYK colorspace handling
...
Some workaround for JPEG CMYK data (inversion), needs more testing
2017-03-05 22:41:38 +00:00
Gunnsteinn Hall
61bcb5ad5f
Fixes in some colorspace handling for images. Improved XObject form handling.
2017-03-04 17:27:23 +00:00
Gunnsteinn Hall
6516adddc4
Cleaning up logging, more debug -> trace log level
2017-03-02 18:06:32 +00:00
Gunnsteinn Hall
c599f8decc
Fix package comments
2017-03-02 12:49:42 +00:00
Gunnsteinn Hall
8a5ae9164a
Fix encoder order in MultiEncoder
2017-03-02 12:49:25 +00:00
Gunnsteinn Hall
4aa6845e27
Refactored contentstream into a separate package.
2017-03-01 16:02:53 +00:00
Gunnsteinn Hall
9247f5d954
Add Trace log level and change Debug to Trace where appropriate. Add log levels to Console logger.
2017-02-28 12:16:46 +00:00
Gunnsteinn Hall
f1ada05914
Support parsing and getting the actual version number and changing the output PDF version
2017-02-28 08:58:50 +00:00
Gunnsteinn Hall
3a6a4bea52
Support flate encoding with predictor 11
2017-02-28 08:58:14 +00:00
Gunnsteinn Hall
445d670f0c
Fixes in image and colorspace handling.
...
DCTDecode filter implemented in core/encoding.go. Various fixes here
and there.
2017-02-24 17:38:41 +00:00
Gunnsteinn Hall
b4c259460c
Implemented ASCII85Decode filter
2017-02-23 15:25:23 +00:00
Gunnsteinn Hall
b8a3ec7180
Initial colorspace and functions support.
...
Implementation of ps parser for function type 4. Function type 3 not
implemented yet and type 0 needs a better interpolation. Functions and
colorspaces need more testing.
2017-02-22 21:10:57 +00:00
Gunnsteinn Hall
80fa077d15
1) Fix trailer dict parsing bug, 2) Get Read/Write OCProps, 3) Read/Write Page Resource Properties
2017-02-15 14:21:20 +00:00
Gunnsteinn Hall
5566df5057
Add multi encoding support (serial) and basic test case. Added line numbers to logs.
2017-02-13 20:35:42 +00:00
Gunnsteinn Hall
0e533ed292
Refactored encoding and stream support with interfaces. Added encoding support and encoding content streams for PDF generation.
2017-02-13 15:30:36 +00:00
Gunnsteinn Hall
f6ffa2aa33
Support for LZW stream decoding. Support for content streams with inline images.
2017-02-12 21:37:07 +00:00
Gunnsteinn Hall
765c30efa4
Fix bug with comments within indirect objects
...
Add some more debugs which can be helpful for troubleshooting
problematic pdf files
2017-01-12 12:23:28 +00:00
Gunnsteinn Hall
4693588a5f
Fix for stream delimiting
2017-01-09 22:00:26 +00:00
Gunnsteinn Hall
a8a2df0b90
Update tests
2017-01-03 15:36:32 +00:00
Gunnsteinn Hall
36ba97ca37
Fix bug with stream in rare malformant PDF cases
2016-12-13 19:39:23 +00:00
