2 Replies Latest reply on Jun 25, 2012 11:18 PM by Dave Merchant

    Can you prevent measuring on an encrypted PDF document

    Garry Wardley

      Can you prevent measuring of a 3D object on an encrypted PDF document using Adobe X or any other version?

      The aim is to allow viewing of a model, but protect the intellectual property of the objects by preventing measuring objects and hence reverse engineering the model?

        • 1. Re: Can you prevent measuring on an encrypted PDF document
          Bill@VT Most Valuable Participant

          The easiest way is to try it (that is what I would do). However, if they can print it they can always get it back into a regular PDF and measure there. May not be as accurate, but is a way around what you are trying to prevent. They could also do screen captures and such. You need to consider all the possible ways they could get the information and work from there as to what might be workable. My guess is that if you really want to restrict it, someone will find a workaround and you will lose. For the average user it may not be a problem and will work as desired.

          • 2. Re: Can you prevent measuring on an encrypted PDF document
            Dave Merchant MVP & Adobe Community Professional

            The media file for any rich media annotation can easily be extracted from a PDF, unless you apply a method of security (such as DRM) which prevents the file from being opened in third-party applications. This is why you are shown a warning message when embedding a b-rep PRC file. The obvious solution is to alter the model prior to conversion to PDF so the measurements are wrong - e.g. by tesselatting and over-simplifying the meshes.