Add a password to a PDF so it cannot be opened without one. Useful before emailing anything you would not want forwarded.
Click the box or drag your file onto it.
Type it twice so a typo cannot lock you out of your own document.
The new file asks for that password every time it is opened.
Email is not private. A payslip, a contract, an ID scan or a medical report can be forwarded, printed or left open on a shared machine without anyone meaning any harm. A password does not make a document unforwardable, but it does mean that forwarding it alone is not enough to read it.
The sensible pattern is to send the file one way and the password another — the document by email, the password by phone or message. Sending both in the same email achieves nothing.
Worth being straight about this, because it differs from most tools on this site. Our word counter and JSON formatter run entirely inside your browser and send nothing anywhere. PDF work is not like that — it has to open and rewrite the document structure, which is more than a browser does reliably across every PDF it might be handed.
So your file is uploaded over an encrypted connection, processed on our server, and the original is deleted as soon as the new file has been produced. The result sits behind a private download link that expires. Nothing is read, indexed or kept for any other purpose.
If a document is confidential enough that it must never leave your machine, use a desktop application instead. That is true of every online PDF tool, not just this one.
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