Lock PDF

Encrypt your PDF with a strong password to prevent unauthorized access.

Drop your PDF here

Select a single PDF file (max 25MB)

We don't store your password. If you lose it, the file cannot be recovered.

How to Password Protect a PDF?

Securing your documents is essential for privacy. Follow these steps to lock your PDF:

  1. Upload the PDF file you want to protect.
  2. Enter a strong password in the input field.
  3. Click "Lock PDF" to apply encryption.
  4. Download your secure file immediately.

Why Lock PDF Files?

Password protection ensures that only authorized individuals can view your sensitive documents, such as financial statements, contracts, or personal records.

Frequently Asked Questions

What encryption is used?▾

We use AES-256 encryption, which is the industry standard for securing PDF documents.

Can I recover my password if I forget it?▾

No. For security reasons, we do not store your password. Please remember it safely.