Where does my password go?

Nowhere. It is used in your browser to encrypt the file and is never transmitted or stored. That also means nobody can recover it for you — keep a copy.

Will the protected file open in any PDF reader?

Yes. It uses the standard PDF encryption every reader understands, so the file simply prompts for the password wherever it is opened.

Password-Protect a PDF

Add a password to a PDF so it cannot be opened without one. Encryption happens in your browser, so neither the document nor the password is ever sent anywhere.

Runs entirely in your browser — your file is never uploaded.

Questions

Where does my password go?: Nowhere. It is used in your browser to encrypt the file and is never transmitted or stored. That also means nobody can recover it for you — keep a copy.
Will the protected file open in any PDF reader?: Yes. It uses the standard PDF encryption every reader understands, so the file simply prompts for the password wherever it is opened.

Remove a PDF PasswordPDFs
Add a Watermark to a PDFPDFs
Fill In a PDF FormPDF forms

Or open the full PDF tool.

Questions

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