Bug 453758 - Okular fails to render some mathematical symbols in PDF
Summary: Okular fails to render some mathematical symbols in PDF
Status: RESOLVED UPSTREAM
Alias: None
Product: okular
Classification: Applications
Component: PDF backend (show other bugs)
Version: 22.04.0
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: Okular developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-05-13 19:11 UTC by Corentin Poupry
Modified: 2022-05-14 23:36 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

Attachments
With Okular (3.91 KB, image/png)
2022-05-13 19:12 UTC, Corentin Poupry 		Details
With Firefox viewer (2.58 KB, image/png)
2022-05-13 19:12 UTC, Corentin Poupry 		Details
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Description Corentin Poupry 2022-05-13 19:11:54 UTC 
SUMMARY

Okular does not correctly render some mathematical symbols in some PDFs I use as a student. I found a reference to a similar bug here https://bugs.freedesktop.org/show_bug.cgi?id=32237

I can't provide the PDF here for copyright reasons, but I could send it to a developer

STEPS TO REPRODUCE
1. Open the PDF
2. Note that some symbols are missing

OBSERVED RESULT
Some symbols are missing and make the document uninterpretable


EXPECTED RESULT
The document symbols should be interpretable

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.24.5
KDE Frameworks Version: 5.93.0
Qt Version: 5.15.3
Kernel Version: 5.17.5-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-7700 CPU @ 3.60GHz
Memory: 15.6 Gio of RAM
Graphics Processor: NVIDIA GeForce GTX 1070/PCIe/SSE2
Comment 1 Corentin Poupry 2022-05-13 19:12:12 UTC 
Created attachment 148805 [details]
With Okular
Comment 2 Corentin Poupry 2022-05-13 19:12:26 UTC 
Created attachment 148806 [details]
With Firefox viewer
Comment 3 Corentin Poupry 2022-05-13 19:13:48 UTC 
I forgot to mention that the renderer is Poppler 22.05.0
Comment 4 Albert Astals Cid 2022-05-14 23:36:49 UTC 
Okular doesn't do any pdf rendering so in any case this would be a poppler bug. Open an issue at https://gitlab.freedesktop.org/poppler/poppler/-/issues