I have observed this behavior with many PDF files of different type / origin. This morning I downloaded this PDF file [1] and started annotating it. When I arrived at page 15 I wanted to mark the last two lines. I pressed the numeric key 4 and started dragging the mouse from the top left corner of the text down to the bottom right. No matter how far I dragged, the marking did not extend to cover the last line. I saved the status of the document [2]. After quitting and restarting Okular, I was able to mark the two lines. [1] <https://www.dropbox.com/s/ozskxg4wol7dvrh/2013scc19.pdf> [2] <https://www.dropbox.com/s/m6ao27izi6dqb84/underlining_bug.okular> Reproducible: Sometimes Steps to Reproduce: 1. start with an unnanotated, multi-pages PDF. 2. Use only the marker tool. 3. Mark a few areas on each page. 4. Try to mark into the end of the page. Actual Results: Observed result: sometimes the last line does not get marked. Expected Results: Expected result: all text until the end of the page marked. Workaround: restart Okular. Unfortunately not very convenient if the lecturer has already moved on and talked about other points in the documents and I have to catch up.
Unfortunately without a way to reproduce the problem reliably it's quite hard to find our where the problem is, it would be great if you could find a way to always reproduce the problem with not much steps so we could then try to nail down why it's doing that, otherwise I don't think we can reasonably fix this bug anytime soon. Thanks a lot for the report :)
I tried the already-modified version of the document (the first link is not available, the second is) and I can drag an annotation from the start to the end of page 15 (Okular 0.19.60, poppler 0.24.5). Could you please try again with a recent version of Okular, or provide (another) example?
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Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!