Bug 272827 - Okular slow rendering with PDFs with many vector graphic elements
Summary: Okular slow rendering with PDFs with many vector graphic elements
Status: RESOLVED UPSTREAM
Alias: None
Product: okular
Classification: Applications
Component: PDF backend (show other bugs)
Version: 0.12.2
Platform: Ubuntu Linux
: NOR normal
Target Milestone: ---
Assignee: Okular developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-05-09 02:08 UTC by Stephan Wienczny
Modified: 2011-05-09 20:54 UTC (History)
0 users

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Description Stephan Wienczny 2011-05-09 02:08:34 UTC 
Version:           0.12.2 (using KDE 4.6.2) 
OS:                Linux

If you open a PDF with many graphic elements the responsiveness from okular is unusable. Zooming and panning are unusable slow.

Reproducible: Always

Steps to Reproduce:
1. Get the PDF from http://vrr.de/imperia/md/content/stadtlinienplaene/dortmund.pdf
2. Open the PDF using okular.
3. Navigate on PDF.

Actual Results:  
Very slow rendering

Expected Results:  
Smooth rendering ;-)
Comment 1 Davor Cubranic 2011-05-09 04:59:25 UTC 
I don't see anything wrong with it. What zoom level? 

Also, what is your hardware (RAM, CPU, graphics card) and software (distribution, X, graphics drivers)? The problem may lie somewhere completely outside Okular.
Comment 2 Stephan Wienczny 2011-05-09 20:38:20 UTC 
I'm using Ubuntu natty 64. Athlon II X2 215, 4GB Ram and nvidia 9500GT graphics with proprietary driver.
When writing the steps above I already had a zoomlevel set in a previous attempt. It was configured to 300%. Evince and other linux pdf-readers are not working any better, but the Adobe Acrobat Reader for Windows does.
Comment 3 Albert Astals Cid 2011-05-09 20:54:47 UTC 
We use poppler to render pdf files, so if the rendering is slow it is not something Okular can fix. Please open a report in poppler bugzilla at https://bugs.freedesktop.org