[okular] [Bug 449066] New: PDF files: first-page thumbnail is missing; only the generic pdf thumbnail is visible

[rgreen]

https://bugs.kde.org/show_bug.cgi?id=449066

            Bug ID: 449066
           Summary: PDF files: first-page thumbnail is missing; only the
                    generic pdf thumbnail is visible
           Product: okular
           Version: unspecified
          Platform: Mint (Ubuntu based)
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: okular-devel at kde.org
          Reporter: greenandpleasant2000-support at yahoo.co.uk
  Target Milestone: ---

SUMMARY
***
After uninstalling Xreader, I installed Okular for the first time on my system.
However, now, after this date, any PDF files created by LibreOffice Write fail
to show the first-page thumbnail on the pdf file.

Existing PDF files, created before the uninstall of Xreader and the install of
OKULAR, are not affected.

***

STEPS TO REPRODUCE

1. Need to have OKULAR uninstalled and all dependencies, configuration files
etc. removed.
2. Install Xreader.
3. In LibreOffice Writer, generate a PDF from a file with a distinctive, large
image on the first page (to create an easily-visible first-page thumbnail on
the pdf icon).
4. Create a pdf.

EXPECTED / OBSERVED RESULT: The PDF should have a thumbnail of the first page
clearly visible on it.

5. Uninstall Xreader and install Okular.
6. Now repeat step 3, above.

OBSERVED RESULT: The first-page thumbnail does not appear; only the generic PDF
thumbnail.
EXPECTED RESULT; The first-page thumbnail should be on the first page of the
PDF doc.

7. Install Xreader (keep Okular) and repeat step 3.

EXPECTED / OBSERVED RESULT: The PDF should have a thumbnail of the book-cover
clearly visible on it.

***
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Mint 20.1 / Cinnamon 4.8.6
KDE Plasma Version: 
KDE Frameworks Version: 5.89.0
Qt Version: 5.15.3.

ADDITIONAL INFORMATION

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