[okular] [Bug 517422] Poor annotation performance in certain PDFs

Iyán M. V. bugzilla_noreply at kde.org
Mon Sep 7 12:46:23 BST 2026


https://bugs.kde.org/show_bug.cgi?id=517422

--- Comment #2 from Iyán M. V. <me at iyanmv.com> ---
I don't think this is (was) a regression. I think it's just a performance
bottleneck that normally is not noticeable, but with certain PDFs, for some
reason, it is very very noticeable and annoying. I can consistently reproduce
the error on different devices in all IETF generated PDFs, as well as with
certain long arXiv PDFs. In the worst cases, there is a lag of ~5 seconds
between typing and seeing anything being written down, for example in an inline
note.

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