Add Password Protection to PDF Documents - 256-bit AES Encryption, Fast & Secure
Protect your PDF files with strong 256-bit AES encryption directly in your browser. No upload required. 100% secure and free.
All processing happens in your browser. Your files and password never leave your device. 100% secure and private.
Drag & Drop PDF or Click to Select
Our online PDF protect tool allows you to add password protection to PDF documents quickly and easily. With support for 256-bit AES encryption, you can secure sensitive documents with military-grade protection.
Yes, our PDF protector is completely free to use. There are no hidden charges, no premium upgrades, and no subscription fees.
Yes, our tool is 100% safe. All processing happens directly in your browser. Your files and passwords never get uploaded to any server, so your documents remain private and secure.
We use 256-bit AES encryption, which is the strongest standard available for PDF protection. You can also choose 128-bit AES or 128-bit RC4 for compatibility with older readers.
PDF passwords cannot be recovered. Make sure you remember the password or store it safely. This tool cannot recover lost passwords.
Yes, our PDF protector works on all devices including smartphones, tablets, and computers.