[okular] [Bug 442398] New: non-latin symbols inside PDF-forms not displayed in view-mode and non-printable

[Amin]

https://bugs.kde.org/show_bug.cgi?id=442398

            Bug ID: 442398
           Summary: non-latin symbols inside PDF-forms not displayed in
                    view-mode and non-printable
           Product: okular
           Version: 21.04.1
          Platform: Fedora RPMs
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: PDF backend
          Assignee: okular-devel at kde.org
          Reporter: aminux at tuta.io
  Target Milestone: ---

Created attachment 141525
  --> https://bugs.kde.org/attachment.cgi?id=141525&action=edit
PDF for test displaying non-latin / ex-latin / math / cyrillic symbols in FORMS

SUMMARY
When PDF with forms filled, non-latin chars displayed only in edit-mode; 
In view / print_preview mode non-latin or extended latin chars not displayed;
This chars also not printed;

STEPS TO REPRODUCE
1. Open PDF with filled form from attach in okular
2. Press button "Show forms" and compare data strings in edit- and display-
modes.
3. Try print filled form to printer (ex cups-pdf) and discover that only basic
latin characters printed.

OBSERVED RESULT
Extended-Latin (extension A-E in kCharSelect), cyrillic and math-symbols inside
PDF-forms not displayed in view-mode and not printing.

EXPECTED RESULT
All symbols visible and printable in PDF-forms fields.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 34 / KDE @ X11
KDE Plasma Version: 5
KDE Frameworks Version: 5.85.0 
Qt Version: 5.15.2

ADDITIONAL INFORMATION

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