How to password protect a PDF in 3 steps
- Upload your PDF.
- Type a password and choose the permissions.
- Click “Protect PDF” and download the encrypted document.
Free, fast and private Protect PDF
Send payslips, medical records or contracts knowing that only the recipient can open them. FreePDF applies 256-bit AES encryption, the strongest standard in the PDF specification.
Unlike other services, your document and your password never travel to a server: encryption happens on your own device.
- AES-256 encryption
- Print, copy and edit permissions
- Optional owner password
- Password never sent over the internet
Why does FreePDF process everything on your device?
Unlike other services, FreePDF never uploads your documents to a server: the tool is downloaded to your browser and uses the processor of your own computer or phone. The result: more privacy, more speed (no waiting for uploads or downloads) and a service that is free forever, funded by a short ad.
Frequently asked questions
What if I forget the password?
We cannot recover it because we never know it. Keep it somewhere safe.
Are my files uploaded to a server?
No. FreePDF processes files directly in your browser using your own device. Documents are never sent over the internet, which makes it the most private and fastest option.
Is it really free?
Yes, 100% free with no sign-up. FreePDF is funded by a short ad shown while your file is processed; its length depends on the size and complexity of the job.