I have several .pdf files that I permit limited access to using Adobe Document Center ([url removed, login to view]). I grant access to these documents after receiving payment for them via paypal. However, up until now, this is a manual process where I have to enter the recipient's paypal email address into Adobe Document Center. I wish to make this an automated system where as soon as the recipient pays, their email address is entered into the Adobe Document Center database. I'm not sure if this is technically possible as it appears ADC's GUI is flash-based.