Upload a PDF file with copy/print restrictions set to automatically remove them. If the PDF file needs a password in order to actually open it (a "user password"), this password cannot easily be removed, as in this case it is actually used to encrypt the document. If there is a separate password to copy and/or print, however, this password can still be removed, provided you know the password to open the document if there is one.
Legal disclaimer: While this tool can be used to remove passwords one is not entitled under copyright law to remove, this is not the intended purpose. If you use this tool to unlock a PDF to which you do not own the copyright, you take sole responsibility.
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