[okular] [Bug 408222] New: Okular is bad in visualization of scanned PDF ! Please fix this !

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=408222

            Bug ID: 408222
           Summary: Okular is bad in visualization of scanned PDF ! Please
                    fix this !
           Product: okular
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: PDF backend
          Assignee: okular-devel at kde.org
          Reporter: yousifjkadom at yahoo.com
  Target Milestone: ---

SUMMARY
Currently, Okular is bad in displaying scanned PDF. Pages of PDF appear as if
of lowe DPI than their real values !

STEPS TO REPRODUCE
1. open any scanned PDF by Okular & look for a given page(s) within it.
2. compare the same page(s) using other PDF viewer like for example xviewer or
evence.

OBSERVED RESULT
Scanned page(s) appear in Okular as if with lower dpi than reality. While in
Evince scanned page(s) appear clearer & more enhanced !

EXPECTED RESULT
It should be same details as in Evince & other PDF viewers

SOFTWARE/OS VERSIONS
Fedora Linux 30 tested with both .rpm & flatpak packages of latest version of
Okular (1.6)

ADDITIONAL INFORMATION
I tried all available enhancement options in PDF back-end but no any
improvement !

I attached scanned PDF with bad scan to make issue more clear. Please open it
in Okular then in other viewer & compare.

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