UtilitiesProtect PDF with Password
Secure your PDF document with AES-256 encryption. Requires a password every time the document is opened.
Drag & drop files here or browse from your device
PDF document · Select files or drag & drop hereRecipients must enter this password to open the file. 256-bit AES encryption.
Protect PDF with Password
Secure your PDF document with AES-256 encryption. Requires a password every time the document is opened.
How to Use
- Select a PDF document.
- Enter and confirm your chosen password.
- Click Encrypt PDF and download the protected document.
Frequently Asked Questions
Do I need to sign up?
No. You can use all PDF tools completely free with no account or registration required.
How strong is AES-256 encryption?
AES-256 is the standard military-grade encryption used globally for secure document transmission.