How to remove password protect from pdf

I have a password protected pdf doc,it is very useful for protecting.But here is a problem puzzle me for long time.
Here is the pro:I can’t print, copy or edit the content of an encrypted PDF file.
Any help???
3 answers Last reply
More about remove password protect
  1. Contact whoever protected the file to unlock it.
  2. 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 & a master password that allows editing/printing etc
  3. This topic has been closed by Area51reopened
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