https://bugs.kde.org/show_bug.cgi?id=415400
Bug ID: 415400
Summary: Okular stumbles while scrolling through a heavy epub
Product: okular
Version: unspecified
Platform: Neon Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: EPub backend
Assignee: okular-de...@kde.org
Reporter: kos...@koshka.ddns.net
Target Milestone: ---
SUMMARY
Okular never stumbles during scrolling through pdf documents. It may temporary
show a blank page but allows you to scroll pages further smoothly.
Okular jerks and stumbles while scrolling through a heavy epub or fb2 document
(perhaps other types of documents too). It is very unpleasant experience. As
far as I can tell it happens even on decent contemporary hardware which,
without a doubt, should allow to scroll through a 2.5MB ~1500 pages document
smoothly.
STEPS TO REPRODUCE
I actually tried to read this book:
https://rutracker.org/forum/viewtopic.php?t=5608295
I could attach it here but I'm not sure whether it would be a copyright issue
or not.
The way the smooth scrolling of Okular were interrupted by page loading
irritated me so much that I ended up converting this book to pdf (using
Calibre) and reading it in pdf form.
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