https://bugs.documentfoundation.org/show_bug.cgi?id=168462
Bug ID: 168462
Summary: Impress: PDF/PDF UA export tag the background
incorrect
Product: LibreOffice
Version: 25.8.1.1 release
Hardware: x86-64 (AMD64)
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Impress
Assignee: [email protected]
Reporter: [email protected]
Description:
I keep running into issues when creating accessible PDFs from Impress,
specifically with what seems to be an incorrectly tagged background.
Regardless of whether the background is a solid color or an image, the result
is always the error: “Untagged path object” or “Untagged image object.” If the
background in the master slides is set to “None,” this problem doesn’t occur.
Steps to Reproduce:
1. Create a presentation with 4 slides and 4 master slides:
- Slide 1: no background
- Slide 2: white background with black text
- Slide 3: black background with white text
- Slide 4: graphic as background, no text
2. Export the presentation as PDF/A-3b (1.7).
- Universal Accessibility (PDF/UA): enabled
- Tagged PDF: enabled
- Export outline: enabled (but grayed out because of PDF/UA)
3. Validate the exported PDF with PAC (https://pac.pdf-accessibility.org/en or
check.axes4.com
Actual Results:
After creating the PDF and checking it with PAC, I got the error described
above on 3 of the 4 slides.
On slides with backgrounds (solid color or image), PAC reports:
- “Untagged path object” (solid color background)
- “Untagged image object” (graphic background)
Only the slide with no background passes without errors.
Expected Results:
Im not quite familiar with the PDF/UA-Standard, I think the background should
be tagged as an artifact (Background).
Reproducible: Always
User Profile Reset: No
Additional Info:
"139007"
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