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Code Issues Releases Wiki Activity

Preserve annotations that inherently lack appearance (fixes #1039)

Browse Source 
...when flattening annotations. This includes /Link, /Popup,
and /Projection.
This commit is contained in:
Jay Berkenbilt 2023-12-29 13:35:29 -05:00
parent 1ad6451e8c
commit 78a7193fe2
11 changed files with 3545 additions and 3113 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
ChangeLog
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@ -1,3 +1,9 @@
2023-12-29 Jay Berkenbilt <ejb@ql.org>
* When flattening annotations, preserve annotations without any
appearance information at all, such as types /Link, /Popup, and
/Projection. Fixes #1039.
2023-12-25 Jay Berkenbilt <ejb@ql.org> 2023-12-25 Jay Berkenbilt <ejb@ql.org>
* Detect overlong UTF-8 in the UTF-8 decoder, and fix detection of * Detect overlong UTF-8 in the UTF-8 decoder, and fix detection of

11
libqpdf/QPDFPageDocumentHelper.cc
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@ -125,11 +125,12 @@ QPDFPageDocumentHelper::flattenAnnotationsForPage(
++next_fx; ++next_fx;
} }
new_content += content; new_content += content;
} else if (process) { } else if (process && !aoh.getAppearanceDictionary().isNull()) {
// If an annotation has no appearance stream, just drop the annotation when flattening. // If an annotation has no selected appearance stream, just drop the annotation when
// This can happen for unchecked checkboxes and radio buttons, popup windows associated // flattening. This can happen for unchecked checkboxes and radio buttons, popup windows
// with comments that aren't visible, and other types of annotations that aren't // associated with comments that aren't visible, and other types of annotations that
// visible. // aren't visible. Annotations that have no appearance streams at all, such as Link,
// Popup, and Projection, should be preserved.
QTC::TC("qpdf", "QPDFPageDocumentHelper ignore annotation with no appearance"); QTC::TC("qpdf", "QPDFPageDocumentHelper ignore annotation with no appearance");
} else { } else {
new_annots.push_back(aoh.getObjectHandle()); new_annots.push_back(aoh.getObjectHandle());

6
manual/release-notes.rst
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@ -38,6 +38,12 @@ Planned changes for future 12.x (subject to change):
.. x.y.z: not yet released .. x.y.z: not yet released
11.7.1: not yet released
- Bug fixes:
- When flattening annotations, preserve hyperlinks and other
annotations that inherently have no appearance information.
11.7.0: December 24, 2023 11.7.0: December 24, 2023
- Bug fixes: - Bug fixes:

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qpdf/qtest/qpdf/appearances-a-more.pdf
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qpdf/qtest/qpdf/appearances-a-more2.pdf
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qpdf/qtest/qpdf/appearances-a-more3.pdf
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qpdf/qtest/qpdf/appearances-a.pdf
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117
qpdf/qtest/qpdf/comment-annotation-direct-out.pdf
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@ -22,10 +22,13 @@ endobj
%% Page 1 %% Page 1
3 0 obj 3 0 obj
<< <<
/Contents [ /Annots [
4 0 R 4 0 R
6 0 R ]
8 0 R /Contents [
5 0 R
7 0 R
9 0 R
] ]
/MediaBox [ /MediaBox [
0 0
@ -36,35 +39,51 @@ endobj
/Parent 2 0 R /Parent 2 0 R
/Resources << /Resources <<
/Font << /Font <<
/F1 10 0 R /F1 11 0 R
>> >>
/ProcSet 11 0 R /ProcSet 12 0 R
/XObject << /XObject <<
/Fxo1 12 0 R /Fxo1 13 0 R
>> >>
>> >>
/Type /Page /Type /Page
>> >>
endobj endobj
%% Contents for page 1
4 0 obj 4 0 obj
<< <<
/Length 5 0 R /F 28
/Open false
/Parent 15 0 R
/Rect [
612
601
792
721
]
/Subtype /Popup
/Type /Annot
>>
endobj
%% Contents for page 1
5 0 obj
<<
/Length 6 0 R
>> >>
stream stream
q q
endstream endstream
endobj endobj
5 0 obj 6 0 obj
2 2
endobj endobj
%% Contents for page 1 %% Contents for page 1
6 0 obj 7 0 obj
<< <<
/Length 7 0 R /Length 8 0 R
>> >>
stream stream
BT BT
@ -75,14 +94,14 @@ ET
endstream endstream
endobj endobj
7 0 obj 8 0 obj
44 44
endobj endobj
%% Contents for page 1 %% Contents for page 1
8 0 obj 9 0 obj
<< <<
/Length 9 0 R /Length 10 0 R
>> >>
stream stream
@ -94,11 +113,11 @@ Q
endstream endstream
endobj endobj
9 0 obj 10 0 obj
35 35
endobj endobj
10 0 obj 11 0 obj
<< <<
/BaseFont /Helvetica /BaseFont /Helvetica
/Encoding /WinAnsiEncoding /Encoding /WinAnsiEncoding
@ -108,14 +127,14 @@ endobj
>> >>
endobj endobj
11 0 obj 12 0 obj
[ [
/PDF /PDF
/Text /Text
] ]
endobj endobj
12 0 obj 13 0 obj
<< <<
/BBox [ /BBox [
0 0
@ -136,7 +155,7 @@ endobj
>> >>
/Subtype /Form /Subtype /Form
/Type /XObject /Type /XObject
/Length 13 0 R /Length 14 0 R
>> >>
stream stream
q 1 1 1 rg 0 i 1 w 4 M 1 j 0 J []0 d /GS0 gs 1 0 0 1 9 5.0908 cm 7.74 12.616 m -7.74 12.616 l -8.274 12.616 -8.707 12.184 -8.707 11.649 c -8.707 -3.831 l -8.707 -4.365 -8.274 -4.798 -7.74 -4.798 c 7.74 -4.798 l 8.274 -4.798 8.707 -4.365 8.707 -3.831 c 8.707 11.649 l 8.707 12.184 8.274 12.616 7.74 12.616 c h f Q 0 G 1 1 0 rg 0 i 0.60 w 4 M 1 j 0 J []0 d 1 1 0 rg 0 G 0 i 0.59 w 4 M 1 j 0 J []0 d 1 0 0 1 9 5.0908 cm 0 0 m -0.142 0 -0.28 0.008 -0.418 0.015 c -2.199 -1.969 -5.555 -2.242 -4.642 -1.42 c -4.024 -0.862 -3.916 0.111 -3.954 0.916 c -5.658 1.795 -6.772 3.222 -6.772 4.839 c -6.772 7.509 -3.74 9.674 0 9.674 c 3.74 9.674 6.772 7.509 6.772 4.839 c 6.772 2.167 3.74 0 0 0 c 7.74 12.616 m -7.74 12.616 l -8.274 12.616 -8.707 12.184 -8.707 11.649 c -8.707 -3.831 l -8.707 -4.365 -8.274 -4.798 -7.74 -4.798 c 7.74 -4.798 l 8.274 -4.798 8.707 -4.365 8.707 -3.831 c 8.707 11.649 l 8.707 12.184 8.274 12.616 7.74 12.616 c b q 1 1 1 rg 0 i 1 w 4 M 1 j 0 J []0 d /GS0 gs 1 0 0 1 9 5.0908 cm 7.74 12.616 m -7.74 12.616 l -8.274 12.616 -8.707 12.184 -8.707 11.649 c -8.707 -3.831 l -8.707 -4.365 -8.274 -4.798 -7.74 -4.798 c 7.74 -4.798 l 8.274 -4.798 8.707 -4.365 8.707 -3.831 c 8.707 11.649 l 8.707 12.184 8.274 12.616 7.74 12.616 c h f Q 0 G 1 1 0 rg 0 i 0.60 w 4 M 1 j 0 J []0 d 1 1 0 rg 0 G 0 i 0.59 w 4 M 1 j 0 J []0 d 1 0 0 1 9 5.0908 cm 0 0 m -0.142 0 -0.28 0.008 -0.418 0.015 c -2.199 -1.969 -5.555 -2.242 -4.642 -1.42 c -4.024 -0.862 -3.916 0.111 -3.954 0.916 c -5.658 1.795 -6.772 3.222 -6.772 4.839 c -6.772 7.509 -3.74 9.674 0 9.674 c 3.74 9.674 6.772 7.509 6.772 4.839 c 6.772 2.167 3.74 0 0 0 c 7.74 12.616 m -7.74 12.616 l -8.274 12.616 -8.707 12.184 -8.707 11.649 c -8.707 -3.831 l -8.707 -4.365 -8.274 -4.798 -7.74 -4.798 c 7.74 -4.798 l 8.274 -4.798 8.707 -4.365 8.707 -3.831 c 8.707 11.649 l 8.707 12.184 8.274 12.616 7.74 12.616 c b
@ -144,31 +163,63 @@ endstream
endobj endobj
%QDF: ignore_newline %QDF: ignore_newline
13 0 obj 14 0 obj
928 928
endobj endobj
15 0 obj
<<
/AP <<
/N 13 0 R
>>
/C [
1
1
0
]
/CA 1
/Contents (Salad)
/CreationDate (D:20181231235455Z00'00)
/F 28
/M (D:20181231235455Z00'00)
/Name /Comment
/P 3 0 R
/Popup 4 0 R
/Rect [
235
703
253
721
]
/Subtype /Text
/T (Jay Berkenbilt)
/Type /Annot
>>
endobj
xref xref
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trailer << trailer <<
/Root 1 0 R /Root 1 0 R
/Size 14 /Size 16
/ID [<c5b1999a07a3fdcd0c04cfeed299c25a><31415926535897932384626433832795>] /ID [<c5b1999a07a3fdcd0c04cfeed299c25a><31415926535897932384626433832795>]
>> >>
startxref startxref
2218 2716
%%EOF %%EOF

122
qpdf/qtest/qpdf/comment-annotation-out.pdf
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@ -22,10 +22,11 @@ endobj
%% Page 1 %% Page 1
3 0 obj 3 0 obj
<< <<
/Annots 4 0 R
/Contents [ /Contents [
4 0 R 5 0 R
6 0 R 7 0 R
8 0 R 9 0 R
] ]
/MediaBox [ /MediaBox [
0 0
@ -36,35 +37,41 @@ endobj
/Parent 2 0 R /Parent 2 0 R
/Resources << /Resources <<
/Font << /Font <<
/F1 10 0 R /F1 11 0 R
>> >>
/ProcSet 11 0 R /ProcSet 12 0 R
/XObject << /XObject <<
/Fxo1 12 0 R /Fxo1 13 0 R
>> >>
>> >>
/Type /Page /Type /Page
>> >>
endobj endobj
%% Contents for page 1
4 0 obj 4 0 obj
[
15 0 R
]
endobj
%% Contents for page 1
5 0 obj
<< <<
/Length 5 0 R /Length 6 0 R
>> >>
stream stream
q q
endstream endstream
endobj endobj
5 0 obj 6 0 obj
2 2
endobj endobj
%% Contents for page 1 %% Contents for page 1
6 0 obj 7 0 obj
<< <<
/Length 7 0 R /Length 8 0 R
>> >>
stream stream
BT BT
@ -75,14 +82,14 @@ ET
endstream endstream
endobj endobj
7 0 obj 8 0 obj
44 44
endobj endobj
%% Contents for page 1 %% Contents for page 1
8 0 obj 9 0 obj
<< <<
/Length 9 0 R /Length 10 0 R
>> >>
stream stream
@ -94,11 +101,11 @@ Q
endstream endstream
endobj endobj
9 0 obj 10 0 obj
35 35
endobj endobj
10 0 obj 11 0 obj
<< <<
/BaseFont /Helvetica /BaseFont /Helvetica
/Encoding /WinAnsiEncoding /Encoding /WinAnsiEncoding
@ -108,14 +115,14 @@ endobj
>> >>
endobj endobj
11 0 obj 12 0 obj
[ [
/PDF /PDF
/Text /Text
] ]
endobj endobj
12 0 obj 13 0 obj
<< <<
/BBox [ /BBox [
0 0
@ -136,7 +143,7 @@ endobj
>> >>
/Subtype /Form /Subtype /Form
/Type /XObject /Type /XObject
/Length 13 0 R /Length 14 0 R
>> >>
stream stream
q 1 1 1 rg 0 i 1 w 4 M 1 j 0 J []0 d /GS0 gs 1 0 0 1 9 5.0908 cm 7.74 12.616 m -7.74 12.616 l -8.274 12.616 -8.707 12.184 -8.707 11.649 c -8.707 -3.831 l -8.707 -4.365 -8.274 -4.798 -7.74 -4.798 c 7.74 -4.798 l 8.274 -4.798 8.707 -4.365 8.707 -3.831 c 8.707 11.649 l 8.707 12.184 8.274 12.616 7.74 12.616 c h f Q 0 G 1 1 0 rg 0 i 0.60 w 4 M 1 j 0 J []0 d 1 1 0 rg 0 G 0 i 0.59 w 4 M 1 j 0 J []0 d 1 0 0 1 9 5.0908 cm 0 0 m -0.142 0 -0.28 0.008 -0.418 0.015 c -2.199 -1.969 -5.555 -2.242 -4.642 -1.42 c -4.024 -0.862 -3.916 0.111 -3.954 0.916 c -5.658 1.795 -6.772 3.222 -6.772 4.839 c -6.772 7.509 -3.74 9.674 0 9.674 c 3.74 9.674 6.772 7.509 6.772 4.839 c 6.772 2.167 3.74 0 0 0 c 7.74 12.616 m -7.74 12.616 l -8.274 12.616 -8.707 12.184 -8.707 11.649 c -8.707 -3.831 l -8.707 -4.365 -8.274 -4.798 -7.74 -4.798 c 7.74 -4.798 l 8.274 -4.798 8.707 -4.365 8.707 -3.831 c 8.707 11.649 l 8.707 12.184 8.274 12.616 7.74 12.616 c b q 1 1 1 rg 0 i 1 w 4 M 1 j 0 J []0 d /GS0 gs 1 0 0 1 9 5.0908 cm 7.74 12.616 m -7.74 12.616 l -8.274 12.616 -8.707 12.184 -8.707 11.649 c -8.707 -3.831 l -8.707 -4.365 -8.274 -4.798 -7.74 -4.798 c 7.74 -4.798 l 8.274 -4.798 8.707 -4.365 8.707 -3.831 c 8.707 11.649 l 8.707 12.184 8.274 12.616 7.74 12.616 c h f Q 0 G 1 1 0 rg 0 i 0.60 w 4 M 1 j 0 J []0 d 1 1 0 rg 0 G 0 i 0.59 w 4 M 1 j 0 J []0 d 1 0 0 1 9 5.0908 cm 0 0 m -0.142 0 -0.28 0.008 -0.418 0.015 c -2.199 -1.969 -5.555 -2.242 -4.642 -1.42 c -4.024 -0.862 -3.916 0.111 -3.954 0.916 c -5.658 1.795 -6.772 3.222 -6.772 4.839 c -6.772 7.509 -3.74 9.674 0 9.674 c 3.74 9.674 6.772 7.509 6.772 4.839 c 6.772 2.167 3.74 0 0 0 c 7.74 12.616 m -7.74 12.616 l -8.274 12.616 -8.707 12.184 -8.707 11.649 c -8.707 -3.831 l -8.707 -4.365 -8.274 -4.798 -7.74 -4.798 c 7.74 -4.798 l 8.274 -4.798 8.707 -4.365 8.707 -3.831 c 8.707 11.649 l 8.707 12.184 8.274 12.616 7.74 12.616 c b
@ -144,31 +151,80 @@ endstream
endobj endobj
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<<
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]
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/Type /Annot
>>
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<<
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>>
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/Type /Annot
>>
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%%EOF %%EOF

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qpdf/qtest/qpdf/need-appearances-more-out.pdf
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qpdf/qtest/qpdf/need-appearances-out.pdf
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