Protect PDF

Add a password to your PDF to prevent unauthorized access.

How to Password Protect a PDF

Upload your PDF, enter a password, and download the encrypted file. Only people with the password can open it.

What encryption is used?

128-bit RC4 encryption — compatible with all PDF readers including Adobe Acrobat.

Can I remove the password later?

Yes — use a PDF unlock tool or our upcoming Unlock PDF feature.

Is my file secure during upload?

Files are processed in memory and deleted immediately after download.