Password-protect a PDF
Add a password to your PDFs with AES-256 encryption. The document can't be opened without it. Free, no sign-up.
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Password-protect a PDF
Lock your PDFs with a password: the document can no longer be opened without it, in any viewer. The encryption is AES-256, today's standard, the same used by banks and secure messaging.
Ideal for emailing report cards, contracts, statements or personal documents. The password is never stored on our servers.
How it works
- Drop your PDFs
- Enter a password (4 characters minimum)
- Download the protected PDFs
Frequently asked questions
What if I forget the password?
The file is unrecoverable: AES-256 can't be broken. Keep it somewhere safe.
Is the password stored?
No, it is only used for encryption and isn't saved.
Can I only prevent printing?
This tool locks opening. Print or copy restrictions are easily bypassed and aren't offered.
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A service by Mathovore.