Primary Password
Enter the primary password to open this protected document. The content will remain hidden until you complete the unlock zone flow.
Incorrect password. Please try again.
Lock your PDF with a
secret unlock zone
Encrypt your PDF behind a dual-password system and a hidden click zone. Only those who know the right zone and password can reveal the content.
Open a Locked PDF
Upload a ZoneLock-protected file, authenticate with your primary password, click the secret zone, and reveal the hidden content.
Open a secure file
Lock a PDF
Upload any PDF, set a primary password, choose a secret unlock zone, and set a secondary password. Download your encrypted ZoneLock file.
Protect a new PDF
Lock a PDF
Drop your PDF here or click to browse
Supports PDF files up to 50MB
Authenticate to reveal
this protected document