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Fix for handling non-widget annotations per page when flattening

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This commit is contained in:
Gunnsteinn Hall 2018-09-24 19:50:58 +00:00
parent 4a89eddcfc
commit 2522849b19
1 changed files with 4 additions and 2 deletions
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6
pdf/model/flatten.go
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@ -36,6 +36,8 @@ func (pdf *PdfReader) FlattenFields(allannots bool) error {
fields := acroForm.AllFields() fields := acroForm.AllFields()
for _, field := range fields { for _, field := range fields {
for _, wa := range field.Annotations { for _, wa := range field.Annotations {
// TODO(gunnsth): Check if wa.Flags() has Print flag then include, otherwise exclude.
// XXX/FIXME: May be better to check field.V only if no appearance stream available. // XXX/FIXME: May be better to check field.V only if no appearance stream available.
if field.V != nil { if field.V != nil {
ftargets[wa.PdfAnnotation] = true ftargets[wa.PdfAnnotation] = true
@ -56,8 +58,8 @@ func (pdf *PdfReader) FlattenFields(allannots bool) error {
} }
// Go through all pages and flatten specified annotations. // Go through all pages and flatten specified annotations.
annots := []*PdfAnnotation{}
for _, page := range pdf.PageList { for _, page := range pdf.PageList {
annots := []*PdfAnnotation{}
for _, annot := range page.Annotations { for _, annot := range page.Annotations {
hasV, toflatten := ftargets[annot] hasV, toflatten := ftargets[annot]
if !toflatten { if !toflatten {
@ -96,7 +98,7 @@ func (pdf *PdfReader) FlattenFields(allannots bool) error {
page.Resources.SetXObjectFormByName(name, xform) page.Resources.SetXObjectFormByName(name, xform)
// XXX/TODO: Take Matrix and potential scaling of annotation Rect and appearance BBox into account. // XXX/TODO: Take Matrix and potential scaling of annotation Rect and appearance BBox into account.
// Have yet to find a case where that actually happens. // Have yet to find a case where that actually is required.
// Placement for XForm. // Placement for XForm.
xRect := math.Min(rect.Llx, rect.Urx) xRect := math.Min(rect.Llx, rect.Urx)