Loading workspace...
Why Choose Protect PDF with Password?
Encrypt your PDF with a password to keep sensitive data confidential. Free online PDF password protection with 256-bit AES encryption.
2
256-bit AES
Bank-grade encryption protects your sensitive documents
P
Password Protection
Set passwords to control who can open your PDF
P
Permission Controls
Restrict printing, copying, and editing independently
S
Secure Process
Encryption happens locally — password never leaves your device
Frequently Asked Questions
Get answers to common questions about using this tool.
Upload your PDF, enter a strong password, and click "Protect PDF". Your document will be encrypted with 256-bit AES encryption.
Related Tools
Explore more PDF tools that work great with this one.
Ready to Process Your PDF?
Upload your file above to get started. All processing happens in your browser — your files never leave your device.
100% FreeNo RegistrationClient-Side ProcessingNo File Limits