[okular] [Bug 451567] New: Text annotations made in Okular are not correctly displayed when the resulting PDF file is opened with other PDF readers

[Mikael]

https://bugs.kde.org/show_bug.cgi?id=451567

            Bug ID: 451567
           Summary: Text annotations made in Okular are not correctly
                    displayed when the resulting PDF file is opened with
                    other PDF readers
           Product: okular
           Version: 21.12.3
          Platform: Flatpak
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: PDF backend
          Assignee: okular-devel at kde.org
          Reporter: mikael at openstudio.se
  Target Milestone: ---

Created attachment 147525
  --> https://bugs.kde.org/attachment.cgi?id=147525&action=edit
Sample PDF annotations made/viewed in Okular and also viewed in pdf.online
web-app

SUMMARY
Text annotations made in Okular are not correctly displayed when the resulting
PDF file is opened with other PDF readers with support for annotations, such as
the free (as in free beer) web-app at pdf.online (powered by PDFTRON) or
Acrobat reader.

STEPS TO REPRODUCE
1. Open a PDF document with landscape format (such as A3 landscape).
2. Add text annotations with typewriter and inline note tools.
3. Save the annotated PDF file.
4. Open the resulting PDF file in another PDF reader with well functioning
annotation tools, such as the free (as in free beer) web-app at pdf.online
(powered by PDFTRON) or Acrobat reader.

OBSERVED RESULT
1. All text annotations are rotated as if Okular can only save annotations with
portrait format rotation. But they will be correctly rotated if re-opened again
in Okular, as if Okular rotates its own annotations internally in a
non-stadard-compliant way.
2. Typewriter text have lost its defined color and be all-black colored. But
the Typewriter text will have maintained its correct color if re-opened in
Okular, as if Okular saves the Typewriter text color in a non-standard
compliant way compared to how free text annotations are supposed to be saved.
3. Typewriter text will have lost its formatting so that some of the text will
not be visible if the text is more than a few words or if it contains line
breaks. But the Typewriter text will have maintained its correct formatting if
re-opened in Okular, as if Okular saves the Typewriter text formatting in a
non-standard compliant way compared to how free text annotations are supposed
to be saved.

EXPECTED RESULT
Text annotations made in Okular should maintain its visual appearance when
opened in other PDF readers with support for annotations.

SOFTWARE/OS VERSIONS
Linux/Debian Buster
Okular installed as Flatpak from Flathub.
Okular Version 21.12.3
KDE Frameworks Version 5.92.0
Qt Version 5.15.3 (built against 5.15.3)
Using Poppler 22.03.0

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