There is a constraint of not being able to undo your last actions (eg highlighting etc.). The other major and more important problem is that the changes made to the document are instantanously saved!! This means you ought to think twice before performing every single action! Another point to be mentioned is that the color of the highlighting and other commenting tools cannot be changed. One last thing to be considered is that each time you want to highlight (or use any other tool for commenting) you have to click to choose the tool from the pane which makes it tedious. Afterall I made these comments since I found your great pdf browser one of the bests available for Ubuntu. There will be no need to mentioned that all the points stated here are initiated with compared to the most popular pdf browsers available for windlows. Thank you in advance Reproducible: Always
Hi, thanks a lot for your comments but I am going to close your bug as invalid. Let me explain why. In this bug you are commenting about lots of various things, hability to undo, hability to change the color of highlighting, hability to save, etc, all of them separate one to another so having all of them together in a single bug report makes it very hard for us to properly assign bugs to people and properly decide when a bug is fixed or not since when too many things are mixed is hard to keep track of them. So I am suggesting you to have a look at https://bugs.kde.org/buglist.cgi?query_format=advanced&list_id=550149&bug_status=UNCONFIRMED&bug_status=CONFIRMED&bug_status=ASSIGNED&bug_status=REOPENED&bug_status=NEEDSINFO&product=okular for the existing bugs/wishes against okular, for the ones that exist for things you are asking (like undo), you should subscribe and vote for them, for the ones that do not exist you should file one bug for each so we can track them properly. Thanks for caring about Okular :-)