Protect PDF
Encrypt your sensitive documents with a secure user password.
100% Free Forever
Upload PDF
Drag & drop a PDF to protect
Free Protect PDF with Password
Add password encryption to any PDF to keep sensitive content private. Perfect for contracts, financial documents, and confidential reports.
How to use this tool
- 1
Upload your PDF
Drag & drop the file.
- 2
Set a strong password
Choose a memorable but secure password.
- 3
Download the protected PDF
Share confidently — only people with the password can open it.
Pro tips
- Use our Password Generator for a strong, random password.
Frequently asked questions
What encryption does it use?
Standard PDF user-password encryption supported by all major PDF readers.