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Protect PDF with Password

Add strong AES-256 encryption to your PDF files to prevent unauthorized access. Your files never leave your device, ensuring maximum security and absolute privacy.

Drop PDF here or click to browse
Supports single PDF file · Up to 100 MB · Files never leave your device
PDF AES-256 Grade Browser-Only
How it works: Upload your PDF, enter a strong password, and click Protect Document. Your file is encrypted instantly inside your browser. We never upload or view your confidential data.

Why Secure Your PDFs with TyagiHub?

In today's digital landscape, protecting sensitive information like financial statements, legal contracts, and personal records is non-negotiable. TyagiHub equips you with a military-grade encryption tool to lock your documents from prying eyes seamlessly.

  • AES-256 Encryption: We utilize the Advanced Encryption Standard (AES) with a 256-bit key length, the same standard adopted by governments and banks worldwide.
  • Absolute Client-Side Privacy: Most online PDF lockers upload your files to a server. TyagiHub processes your password and encrypts the file strictly within your device's browser memory.
  • Fast & Reliable: Powered by WebAssembly (WASM), our cryptographic engine runs at near-native speeds, securing heavy documents in milliseconds.

How to Password Protect a PDF File

  1. Select Document: Drag and drop your PDF into the designated area or click to browse your local files.
  2. Create a Password: Enter a strong password in the settings panel. Ensure it's something you won't forget, as it cannot be recovered.
  3. Apply Encryption: Hit the "Protect Document" button. Our engine will instantly compile a locked version of your file.
  4. Download & Share: Save the secured PDF to your device. Anyone trying to open the document will now be prompted for the exact password.

Frequently Asked Questions (FAQ)

Can I recover my password if I forget it?
No. Because TyagiHub uses true AES-256 encryption and operates 100% offline, we do not store your passwords or possess any "master key." If you lose the password, the document's contents cannot be recovered.
Is it safe to lock my bank statements here?
Absolutely. This tool is designed specifically for highly sensitive documents. Since no data is transmitted over the internet, your financial information remains strictly between you and your computer.
Will this tool change the formatting of my PDF?
No, the encryption process only scrambles the underlying byte data to secure it. Once the correct password is provided, the document will look and behave exactly as the original.