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PDF Tools
PDF Protect
Add password protection to any PDF file.
✓ Free · No signup · Secure server processing
What is PDF Protect?
Add password protection to any PDF online. Set a user password to restrict opening and optionally an owner password for permissions. Free, secure PDF encryption.
How to use PDF Protect
- Open PDF Protect on www.it3.it.com
- Upload your PDF
- Enter a user password (required)
- Optionally set an owner password
- Click Protect PDF and download
Key features
- Password-protect any PDF
- User and owner password support
- Strong encryption
- Up to 25 MB file size
- Free with no signup
- Secure server processing
Frequently asked questions
What is the difference between user and owner passwords?
The user password is required to open the PDF. The owner password controls editing permissions.
Can I recover a forgotten password?
No. Store your password safely u2014 it cannot be recovered if lost.
Will protection work in all PDF readers?
Yes. Standard PDF encryption works in Adobe Reader, browsers, and most PDF apps.
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