https://bugs.documentfoundation.org/show_bug.cgi?id=174106
Bug ID: 174106
Summary: PDF/UA: a decorative shape inside a group that is not
decorative is tagged (its text becomes P), the
Decorative flag of a group member is ignored
Product: LibreOffice
Version: 26.8.0.3 release
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: accessibility, filter:pdf
Severity: normal
Priority: medium
Component: Impress
Assignee: [email protected]
Reporter: [email protected]
Blocks: 139007
Created attachment 209265
--> https://bugs.documentfoundation.org/attachment.cgi?id=209265&action=edit
A group with a decorative member, and a decorative group
In Impress a shape inside a group can be marked Decorative (Format >
Description... > Decorative). In a tagged PDF this flag is ignored when the
group itself is not decorative: the member is tagged like the other members of
the group, so its text becomes a P in the group's Figure, and a screen reader
reads the decoration as content.
Steps to reproduce:
1. Open the attached decorative-group-member.fodp. It has a group (not
decorative) with a text box "Meaningful text" and a decorative text box
"Decorative member", and a decorative group with a decorative text box.
2. File > Export as PDF, with "Universal Accessibility (PDF/UA)" checked.
3. Look at the marked content of the page (for example qpdf --qdf and search
for BDC, BMC, EMC and BT).
Actual: "Decorative member" is in /P <</MCID 3>> BDC, tagged as a paragraph of
the group's Figure, the same as "Meaningful text".
Expected: "Decorative member" is in /Artifact marked content and has no
structure element, like a decorative shape outside a group.
In svx/source/sdr/contact/viewobjectcontact.cxx,
ViewObjectContact::createStructureTag creates a structure tag only for objects
that are not in a group (ISO 14289-1, 7.3: the members are part of the group's
Figure). This check comes before the Decorative check, so a decorative group
member gets neither a tag of its own nor an artifact, and its content stays in
the group's tagged content.
The attached decorative-group-member-26.8.pdf is the output of 26.8.0.3. There
the text of the decorative group is in no marked content at all: that part is
tdf#173780.
Reproduced on 26.8.0.3, macOS.
See also tdf#173780.
Referenced Bugs:
https://bugs.documentfoundation.org/show_bug.cgi?id=139007
[Bug 139007] [META] PDF accessibility
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