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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?
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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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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Ah, yes, I'm using Adobe Reader! That makes sense. Thanks so much for your reply. At the moment, I scan Word documents into my computer and they're automatically converted to PDFs. If I had Adobe Acrobat on my computer, and scanned in documents, would they open in Reader automatically or could I open them in Acrobat and therefore add password protection?