Protect PDF

Password-protect a PDF

Set a password that the recipient must enter before the PDF will open. This adds a layer of security when sending sensitive documents over email or storing them in cloud drives. Encryption is applied to the standard PDF format, so the protected file opens in any PDF reader as long as the correct password is entered. Remember: if you forget the password, there is no recovery, the tool cannot unlock it later.

When to lock a PDF

• Sending salary slips or bank statements via email. A password ensures only the intended recipient opens them.
• Sharing a confidential business proposal with a client. Set a password and share it over a separate channel like SMS.
• Storing personal documents on a shared family computer. A password-protected PDF adds a basic privacy barrier.

Tip: Choose a password you'll remember or store it in a password manager. The tool does not keep a copy of your password. If you lose it, the PDF is inaccessible.

Frequently Asked Questions

Is the password stored on the server?

No, everything runs in your browser. The PDF is encrypted locally before download, and no password is sent anywhere.

What if I forget the password I set?

There's no recovery option. The tool doesn't store your password anywhere, so if you forget it, the protected PDF can't be opened again. Save it in a password manager.

Why do I need to enter the password twice?

The confirm password field catches typos. If the two entries don't match, the tool won't protect the file, preventing you from locking it with a password you didn't intend to set.

Can I remove the password later if I need to?

Yes, use the Unlock PDF tool with the correct password to remove protection and get back an unencrypted copy.

Is there a minimum password length?

Yes, the password must be at least 4 characters, though a longer, less guessable password is recommended for sensitive documents.