Matthew: Sorry for border you! It was so easy, I already had the Pdf reader pro, purchased in ITunes! Now I have a new problem. I downloaded the PDF light before, opened my email, download a PDF document, and then, discover that I already had the PDF PRO version, so delete the lite version. Now I can't open my email. It shows the PDF document with no options. I can't access my email. I bid these is funny for you, it is for me. I got stocked in between world, like Neo in Matrix Revolutions. Please help me how to proceed?