What I just discovered now is that FileOpen either monitors your web surfing or at least has a list of url's or keywords it looks for in your browser which will automatically close your protected pdf documents if you go to a site.Īll I did was go to a page where they discuss Elcomsofts APDFPR and it pops up a message that says 'The Publisher of this document has requested that it not be opened while password cracking programs are running. I have known for some time that the FileOpen plug in will stop letting you use your paid-for documents if it detects that you have certain programs for modifying the drm on pdf's (such as Elcomsoft's APDFPR) installed even those that only work when you already have the password to open the document in the first place.

The FileOpen plugin that you can use with Adobe Reader for pdf documents is used for drm for ebooks and other documents that you typically have to buy from someone.