| Summary: | display builds up far too slow | ||
|---|---|---|---|
| Product: | [Unmaintained] kpdf | Reporter: | Matthias Pospiech <matthias.pospiech> |
| Component: | general | Assignee: | Albert Astals Cid <aacid> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | normal | ||
| Priority: | NOR | ||
| Version: | unspecified | ||
| Target Milestone: | --- | ||
| Platform: | unspecified | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed In: | ||
| Sentry Crash Report: | |||
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Description
Matthias Pospiech
2005-10-30 18:29:19 UTC
Well, i will not discuss wether Acrobat is faster or not than kpdf. Because sometimes we are and sometimes we are not, but remember kpdf is free and Acrobat is not. About your problem I'm sorry to tell you that you probably are not using kpdf as kpdf never lets you see how the page builds up, we show a blank page with a cross when we are rendering and the page once rendered, you are probably using kghostview, to be sure, please see if you have checkboxes in the thumbnail list or not. (I did not want to start a discussion about what is better - it just came to my mind) >I'm sorry to tell you that you probably are not using kpdf as kpdf never lets >you see how the page builds up, we show a blank page with a cross when we are >rendering. Well, I a m very sure that I use kpdf. Exactly version 0.4.3. And I do not see any thumbnails if the pdf does not contain some. About the rendering: I see a blank page with the cross. But what I mean is the time between the cross and the finished rendered page. I see how the fonts and images get more and more detailed until the page is ready rendered. Once every page has been shown once, pages are shown directly. I have put an example under ftp://ftp.matthiaspospiech.de/download/kpdf-screenshot.png Maybe this does only apply if the pdf contains images. I have tried some pdfs, and those with no pictures were rendered fast. On the other hand PDFs that contain only scanned pages are then rendered on a second scale. It takes roughly 5-6 seconds until one page is rendered. Then scrolling means that one only sees crosses and has to wait for each page seconds. So I would say that the time needed depends mainy on the time needed for the pictures. Matthias Well, i was incorrect, if you have the page thumbnail rendered first you get the thumbnail upscaled and then the real content. "I do not see any thumbnails if the pdf does not contain some." That's completely incorrect, kpdf generates the thumbnails on the fly, not reading precalculated thumbnails like Acrobat does. And yes kpdf is not very fast rendering images, any help on improving that code is welcome. *** This bug has been marked as a duplicate of 113949 *** >"I do not see any thumbnails if the pdf does not contain some."
> That's completely incorrect, kpdf generates the thumbnails on the fly, not
> reading precalculated thumbnails like Acrobat does.
Ok, I did not know that. However, as you can see in my screenshot, I see no thumbnails on the side. And I did not find an option to turn them on or off either.
Matthias
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