PDFTwin

PDFTwin

Protect PDF with password free

Lock confidential PDFs with a password or unlock files you own. Secure server processing — files never stored.

Protect PDF now

Why use PDFTwin

  • Encrypt with password
  • Unlock PDFs you own
  • 50 MB free
  • No watermark

How it works

  1. 1
    Upload PDF

    Select the file to lock or unlock.

  2. 2
    Set password

    Enter open password or unlock key.

  3. 3
    Download

    Save the protected or unlocked PDF.

Frequently asked questions

Can PDFTwin recover a lost password?
No. We cannot recover passwords you forget.