Bug 502807 - Show transparency in a pdf file
Summary: Show transparency in a pdf file
Status: REPORTED
Alias: None
Product: okular
Classification: Applications
Component: PDF backend (show other bugs)
Version: unspecified
Platform: Arch Linux Linux
: NOR wishlist
Target Milestone: ---
Assignee: Okular developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-04-14 20:24 UTC by bronko
Modified: 2025-04-14 20:24 UTC (History)
0 users

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

Attachments
Sample pdf with transparent background (8.00 KB, application/pdf)
2025-04-14 20:24 UTC, bronko 		Details
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Description bronko 2025-04-14 20:24:54 UTC 
Created attachment 180267 [details]
Sample pdf with transparent background

I would like to have an option in the settings or the toolbar to actually show transparent parts in a pdf file (like a checkered background like most programs do).


STEPS TO REPRODUCE
1. Open pdf with a transparent background (see attachment)

OBSERVED RESULT
Transparency in the PDF file is shown as a white background color.

EXPECTED RESULT
Show the transparency using a checkered background (optional setting, the default should still be white).

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.12.0
Qt Version: 6.9.0

ADDITIONAL INFORMATION
Background: I was reviewing a pdf file that was sent to me for printing and the file had a transparent background so only the text/logo would be printed and not a white background around it.
Hint: Use gimp to import the file and in the import dialog unclick "Fill transparent areas with white" to show the transparent background.