2 Replies Latest reply on Aug 28, 2008 10:07 AM by gkaiseril

    Expire date for PDF file

      I need help in this.
      I am making book in PDF for the student in this school year. I will distribute this book in CDs. I would like to find a method to make expire date for this book by the end of this school year, the last of May 2009 as an example. Then the students cant open the PDF file after that date.
      Please, how can I do this.

      Thank you