Encrypt PDF

Secure your documents with password protection

How to Use4 Quick Steps & Important Notes

How to Use

  1. Upload a PDF.
  2. Keep AES-256 selected, or choose legacy mode only for an older PDF reader.
  3. Choose a strong password and confirm it.
  4. Download the locked file - share the password separately.

What to Expect

  • Recipients need the password to open the file.
  • Use a strong password you do not reuse elsewhere.
  • AES-256 is the recommended default; RC4-128 is provided only for legacy compatibility.
  • PDF permissions are advisory and may be ignored by some readers.

Choose files or drag them here

Select a single file · processed privately in your browser

Modern Protection

AES-256 by default, with a legacy reader option

Instant Processing

Encrypt PDFs in seconds, no waiting

Zero Upload

Everything happens in your browser