[okular] [Bug 502807] New: Show transparency in a pdf file

bronko bugzilla_noreply at kde.org
Mon Apr 14 21:24:54 BST 2025


https://bugs.kde.org/show_bug.cgi?id=502807

            Bug ID: 502807
           Summary: Show transparency in a pdf file
    Classification: Applications
           Product: okular
           Version: unspecified
          Platform: Arch Linux
                OS: Linux
            Status: REPORTED
          Severity: wishlist
          Priority: NOR
         Component: PDF backend
          Assignee: okular-devel at kde.org
          Reporter: c1_kde_bugtrack3r at teamchris.info
  Target Milestone: ---

Created attachment 180267
  --> https://bugs.kde.org/attachment.cgi?id=180267&action=edit
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.

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