PDF Encrypt / Unlock
Set a password to open a PDF, or remove the restriction if you know the password. Based on open-source qpdf, no login required; the tool is completely free.
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Click to choose, or drag a PDF here
Add an open password to the PDF (AES-256)
FAQ
Can it crack a PDF without knowing the password?
No. Unlocking requires the correct password; this tool only removes restrictions and does not perform any cracking.
What encryption strength is used?
AES-256 encryption is used to set an open password for PDFs.
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