1 Reply Latest reply on Jun 8, 2015 11:17 AM by IsakTen

    Binding PDF to single computer/user

    philw16871002

      I create and sell interactive PDFs to my subscribers. I encrypt all my pdfs with passwords which only subscribers will receive once they've made payment. But recently I've discovered that some of my subscribers have been emailing the pdfs along with passwords to other non-subscribers, so they can have access to my material without payment.

      Is there a way to bind a pdf to a single computer or user?

      If not, are there any suggestions on how to counter this program?