Password Protect PDF Online Free
Add password protection to your PDF documents with our free online tool. Set an open password to restrict access, or add permission passwords to prevent printing, editing, and copying. Uses AES 256-bit encryption for maximum security.
How to Password Protect PDF
Upload Your PDF
Select the PDF file you want to protect.
Set Password
Choose an open password and/or permission password. Set what actions to restrict.
Protect
Click Protect to encrypt your PDF with the passwords you set.
Download
Download your password-protected PDF. The file is encrypted with AES 256-bit.
Why Choose Our Password Protect PDF ?
AES 256-bit encryption
Separate open and permission passwords
Control printing, editing, and copying permissions
Works with all PDF viewers
Instant encryption
Free for all users
About Password Protect PDF
Add password protection to your PDF documents with our free online tool. Set an open password to restrict access, or add permission passwords to prevent printing, editing, and copying. Uses AES 256-bit encryption for maximum security.
Our PDF protection tool implements two levels of security. The Owner Password prevents unauthorized actions like printing, copying text, editing, and adding comments. The User Password prevents opening the file without the correct password. Both can be used independently or together for maximum document security.
Frequently Asked Questions
We use AES 256-bit encryption, which is the industry standard for document security.
Yes. Use our Unlock PDF tool to remove password protection from your PDF.