1 Reply Latest reply on Aug 17, 2012 10:28 AM by Test Screen Name

    Preventing copying pdf file




      I created a PDF school book for students.

      The students buy the book on my site.

      The student can enter answers for homework in the book and send them to the teacher.


      On the first page he enters:

      - teachers email

      - teachers name

      - students email

      - students name

      and saves the pdf


      with thees fields the book knows where to send the answers


      The teacher can then send back the grade.

      All works with FDF files.


      I need to prevent students to just copy the book and not buy it?


      What is the way to do this?



      Thank you.


        • 1. Re: Preventing copying pdf file
          Test Screen Name Most Valuable Participant

          There is absolutely no way.


          You can consider DRM (Digital Rights Management) but this is likely to be out of budget. DRM does not stop a file from being copied, but makes the copy useless.


          Probably the best solution is to consider a server solution to stamp the student's name into the book. But that probably won't stop most of them.