"I have been an avid fan of PDF annotator for six years (I'm in science research). So I just wanted to email you and say THANK YOU! Thanks for creating such a great program and for making software that is so user friendly. As a consumer, I really appreciate it and you are definitely the exception in the field."

Anne Cherry

Harvard University

"Other than OneNote, this is the most frequently used pen-enabled program I use. I don't know how I would be a professor without it."

Gordon Watts

University of Washington