Password Protect a PDF
Add a password to your PDF so only the people you choose can open it. Upload the file, set a password and download the protected copy.
How to password protect a PDF
Locking a document takes under a minute.
- Upload your PDF
- Click Add Password
- Enter a password of at least 4 characters and confirm it
- Click Protect and download the locked file
When to protect a PDF
A password adds a layer of privacy whenever a document leaves your hands.
- Emailing contracts, payslips or invoices
- Sharing medical or financial records
- Storing personal documents in the cloud
- Sending confidential reports to clients
Why use this tool
It runs in your browser on any device. The tool checks whether a file is already protected and asks you to confirm the password so typos don't lock you out.
Tips for strong passwords
Use a long password that mixes words, numbers and symbols, and share it through a different channel than the file itself, for example by phone or message instead of the same email. Keep a copy of the password, because you will need it to open the file later.
Frequently asked questions
How do I put a password on a PDF?+
Upload the PDF, click Add Password, enter and confirm a password, then click Protect and download the locked file.
How long does the password need to be?+
The minimum is 4 characters, but a longer password with mixed characters is much safer.
What if the PDF is already password protected?+
The tool detects this and lets you know. To change the password, first remove it with Unprotect PDF and then protect the file again.
Can I remove the password later?+
Yes. Use the Unprotect PDF tool and enter the current password to save an unlocked copy.
