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How do I password-protect a PDF document that doesn't let me change the security settings?

Jul 19, 2012 7:27 PM

I want to password-protect my PDF document (so when I email it, it can only be opened/read by intended recipients as it contains confidential/sensitive information) but when I go into document security, I'm unable to change the Security Method (which is currently set to 'No Security' - not by me).  There's a 'show details' icon but it's grey so I can't click on it.  What can I do to protect this document from being opened by non-intended recipients?

  • Currently Being Moderated
    Jul 20, 2012 12:15 AM   in reply to LauraMichelleSP

    There seem several possibilities.


    Are you using Adobe Reader instead of Adobe Acrobat?

    Are you making a PDF/A file? (It will say so under the menu bar)

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