This question already has an answer here:
- How to Edit PDFs? 10 answers
I know that there is a very similar question, but I'm not interested in highlighting. What I'm looking for is some tool in Linux to edit pdf files. I've tried pdfedit which did the work for me, but if freezes after a few edits. I've tried this tool under Ubuntu 9.10 and under KDE Fedora 14 and the same thing happens. I've tried Okular but the notations are too big to fill out exercises from pdf workbooks.
Is there any tool that suits this job? I don't care whether it is open source or I have to pay a reasonable price for it.