Protect a PDF
Add a password. Nobody can open the file without it.
- Free
- Files not kept
Reading your file…
Continue with another tool
How to password-protect a PDF
- Select your PDF.
- Type a password twice.
- Press Protect PDF and download the locked file.
Why SuperOffice
This tool needs our server, so it asks for a free account. The file goes over an encrypted connection, the result comes straight back, and we delete our working copy as soon as it is sent. Need someone to sign the result? Send it for signature with SuperOffice.
Limits. Up to 96 MB per file. Needs a free account.
Questions
How strong is the protection?
The file is locked with AES-256, the strongest standard PDF readers support.
What if I forget the password?
We never store it, so we cannot recover it. Keep it somewhere safe.
Why do I need an account?
Locking runs on our server. A free account keeps it from being misused.
Do you keep my file or password?
No. The locked file is sent back to you and our working copy is deleted at once.