How To Annotate PDF Online?
Easy-to-use PDF software
What are good cross-platform free PDF editors?
Annotate PDF: All You Need to Know
I have been using Dan for just over two years now. I really do not get paid for this. However, I would be thrilled if the people who use Dan could give a few dollars to Dan (and the developers). Also, if you don't find what you need in Dan, share the link with anyone who can use it! This makes me very happy. In addition, don't forget about my article series for Dan, “Tips for Getting the Most out of Dan.