Drop PDFs to Protect
Protect PDF
Add a secure password to your PDF files to prevent unauthorized access. 100% Client-Side.
or drag and drop your PDFs anywhere on the page
Security Settings
Set Document Password
Confirm Password
ℹ️ Password will be required to open the document. Make sure to remember it.
🔐 256-Bit Encryption
We use military-grade AES encryption protocols to lock your files, ensuring nobody can read them without the password.
📁 Batch Protection
Apply the same secure password to multiple files at once and download them instantly in a convenient ZIP archive.
🛡️ 100% Private
Your documents and passwords never leave your browser. All encryption happens entirely on your own device.
⚡ Lightning Fast
Powered by our custom WebAssembly engine, encrypting even large PDF documents takes only a fraction of a second.