Protect PDF
Add a military-grade password to your PDF. 100% private encryption that happens entirely in your browser.
Bank-Level PDF Encryption
When you share sensitive data like bank statements, medical records, or legal contracts, protection isn't optional. ToolKing uses **AES-256 bit encryption**—the same standard used by governments—to lock your files.
Because we use **WebAssembly**, the encryption engine runs inside your browser. We never see your password, and we never see your file.
Why Trust ToolKing?
- ✓ No Server Uploads
- ✓ Open Source WASM Engine
- ✓ Industry Standard AES-256
Security FAQs
Is my password stored on ToolKing servers?
No. ToolKing uses client-side WebAssembly (WASM) to encrypt your PDF. Your password and document stay entirely within your browser's memory and are never uploaded.
What encryption standard does this tool use?
We use industry-standard AES-256 bit encryption, ensuring your PDF is protected against unauthorized access and brute-force attempts.
Manage Your Documents Safely