did you originally encrypt the document
most encrypted PDF have 2 passwords A read only password that is given to anyone needing to open & read it...
That is what i tried before.
Outlooker, thanks for your helpful post.
I have encountered a similar problem. Now i find the solution in internet.
Wait for a moment.
hello, everyone! I am newbie.
The PDF format by definition does not allow you to make changes to the file. If you happen to have the Pro Version of Adobe's Acrobat software you...
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