Encrypt confidential documents with a password and choose what recipients can do with them. Everything happens locally on your device.
Drag file here
No upload. Your file stays on your device - processing runs directly in your browser, and nothing is transferred to a server.
In three steps: Protect PDF
- Select a PDF file or drop it here with Drag & Drop.
- Set a password and choose permissions.
- Save the protected PDF.
Frequently asked questions
What encryption is used?
AES with 256-bit encryption by default-the current standard for PDF encryption. AES with 128-bit encryption is also available for older software.
What happens if I forget the password?
You will no longer be able to open the file. Recovery is virtually impossible with proper AES encryption, so store the password securely.
Can I restrict printing and copying?
Yes. You can choose whether the document can be printed, text can be copied, or it can be edited. Note: These permissions rely on the PDF viewer's cooperation-the password protection itself is cryptographically effective.
Is my password transmitted?
No. Encryption and password entry happen only in your browser. Nothing is sent to a server.
What makes a password secure?
At least twelve characters with uppercase and lowercase letters, numbers, and special characters-and do not reuse a password you already use elsewhere.