Slow display of pdf files when high cpu usage

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Victor Warner
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Posts: 143
Joined: Wed Sep 23, 2009 8:15 am

Slow display of pdf files when high cpu usage

Post by Victor Warner »

I find that PDF-Xchange displays pdfs (virtually all types, whether containing simple text or with high graphic content) when the CPU usage is at a high percentage. Ie the screen slowly builds up the view of the pdf.

However, with a high CPU usage and opening the corresponding files in Adobe Acrobat 9.0 viewer the pdf is displayed almost instantaneously.

Is there anything that can be done about this?

Victor Warner.
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Bhikkhu Pesala
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Posts: 1776
Joined: Tue May 29, 2007 9:29 am

Re: Slow display of pdf files when high cpu usage

Post by Bhikkhu Pesala »

Victor Warner wrote:Is there anything that can be done about this?
Swings and roundabouts. Perhaps something could be done for some files, but it might affect the performance on other files. Without a link to a PDF file that suffers from this problem, nothing at all can be done.

See this thread
Windows 10 Home 64-bit • AMD Ryzen 5 3400G, 8 Gb
Review: http://www.softerviews.org/PDF-XChange.html
Victor Warner
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Posts: 143
Joined: Wed Sep 23, 2009 8:15 am

Re: Slow display of pdf files when high cpu usage

Post by Victor Warner »

Bhikkhu

Thank you for the link. This has explained why this problem is happening, even if a permanent solution is not available yet.

Victor Warner
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Stefan - PDF-XChange
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Joined: Mon Jan 12, 2009 8:07 am

Re: Slow display of pdf files when high cpu usage

Post by Stefan - PDF-XChange »

Hi Viktor,

Also have in mind that Adobe uses different rendering where it is "gradually" adding content to the page or refining in a few steps the initial "crude approximation". On some files it might look that Adobe is faster exactly because of this, and because we are showing white page before the full rendering is complete.

Regards,
Stefan