Bug 500020

Summary: Scroll bar restricted to the current page in some pdfs
Product: [Applications] okular Reporter: Jens Lallensack <jens.lallensack>
Component: generalAssignee: Okular developers <okular-devel>
Status: RESOLVED DUPLICATE    
Severity: normal CC: john.kde, john.kizer
Priority: NOR    
Version First Reported In: 24.12.2   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Jens Lallensack 2025-02-13 20:30:06 UTC 
SUMMARY
When reading some pdfs, the scroll bar on the right is restricted to the current page. It is therefore not possible to use it to quickly scroll through the document. Other pdfs work fine, however (I see this bug in maybe 20% of the pdfs I try). This problem appeared a few months ago while everything worked fine before that; it must be a recent regression. I tried to delete all the configuration files, but the bug is still there.

STEPS TO REPRODUCE
1. Open a pdf for which this bug shows (Open Access scientific article as example here: https://www.nature.com/articles/s41598-025-85497-y.pdf)

OBSERVED RESULT
The pdf is multiple pages long, but the scroll bar only shows one page, and cannot be used to scroll through the pdf.

EXPECTED RESULT
The scroll bar should represent the entire pdf, as in other pdfs.

SOFTWARE/OS VERSIONS
Operating System: EndeavourOS 
KDE Plasma Version: 6.3.0
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.2
Kernel Version: 6.12.13-1-lts (64-bit)
Graphics Platform: Wayland
Processors: 16 × 12th Gen Intel® Core™ i7-1260P
Memory: 31.2 GiB of RAM
Graphics Processor: Mesa Intel® Iris® Xe Graphics
Comment 1 John Veness 2025-02-13 22:06:02 UTC 
I've noticed this too. Choosing View Mode > Continuous will fix it for that document. For some reason the "Open in continuous mode" setting seems to be not working.
Comment 2 Jens Lallensack 2025-02-13 22:15:22 UTC 
(In reply to John Veness from comment #1)
> I've noticed this too. Choosing View Mode > Continuous will fix it for that
> document. For some reason the "Open in continuous mode" setting seems to be
> not working.

Excellent, thank you for pointing out this workaround, it makes my workflow so much more pleasant.
Comment 3 John Kizer 2025-02-27 05:36:27 UTC 
Hi - merging this one in with an existing issue report around Continuous View not being applied when opening certain files. Thanks!

*** This bug has been marked as a duplicate of bug 497715 ***