Protect PDF with Password
Encrypt your PDF with strong AES-256 protection. Choose whether printing and copying are allowed. The file is protected on your device and never uploaded.
Runs in your browser. Your files never leave your device.
- 1Add file
- 2Adjust
- 3Download
How it works
- 01Add your PDF.
- 02Choose a password.
- 03Press Protect and download.
Tips and common mistakes
Choose a password you can remember and others cannot guess
Use a long phrase or a mix of words, numbers and symbols rather than a birth date. Write it down somewhere safe, because a lost password usually cannot be recovered.
Share the password separately
Send the PDF in one message and the password in another, ideally through a different app. That way a single lost message does not give access to the file.
Guides for this tool
Questions
Can you recover a lost password?
No. Nobody can, not even us. Keep the password somewhere safe.
Is my file uploaded to a server?
No. Everything happens inside your browser on your own device. Your files are never sent to us or anyone else.
Is it free?
Yes. It is free to use, with no signup, no watermark and no daily limit.