Protect PDF
Add a password to open your PDF.
🔒 Uploaded over HTTPS, processed, then deleted immediately - never stored.
Loading the tool…
Encrypt a PDF with a password so only people who know it can open the file. Uses strong AES-256 encryption.
How to protect pdf
- Drop the PDF you want to protect.
- Enter and confirm a password.
- Click Protect PDF and download the encrypted file.
Frequently asked
How is my file handled?
It is sent over HTTPS to a server tool (qpdf), encrypted, returned, and deleted straight away. We never store or log it.
What if I forget the password?
It cannot be recovered - there is no back door. Keep it somewhere safe.