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Password protecting PDF from copy/paste, not secure in Mac "Preview"?

Jul 8, 2012 9:14 PM

I created a book for someone and sent a PDF of it.  I secured it with a password so it can be printed but not edited or copy/paste compatible.  When I open the PDF on Acrobat on my PC, its locks me out as it should.  I sent to friend and of course its the same way on Acrobat on his Mac.  But when he opened it in "Preview" on the Mac, it lets him copy paste.  He said he is using OSX Lion 10.7.4.

 

Why is Mac's viewer bypassing the security and how can I keep it from doing this?

 
Replies
  • George Johnson
    11,744 posts
    Aug 11, 2002
    Currently Being Moderated
    Jul 8, 2012 10:47 PM   in reply to kellyjaye1

    A PDF consumer (viewer) is expected to honor any standard security restrictions that are in place, but there is no way to ensure that every one will. A different method that provides a strong form of security could be used, such as Certificate security or LiveCycle Rights Management (a type of DRM), but then non-Adobe viewers such as Preview wouldn't be able to open the document at all.

     
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