PDF Password Protector – Encrypt & Lock PDF
Add AES-128 password protection to any PDF. Control printing, copying, editing permissions. 100% client-side.
Drop your PDF here
Add password protection · Set permissions · Choose encryption strength
100% private — never uploaded to any server
AES-128 Encryption
Industry-standard encryption supported by all modern PDF viewers
Dual Password System
Separate user password (open) and owner password (admin control)
Block Copying
Prevent users from copying text or images from the PDF
Restrict Printing
Disable printing entirely or limit to low-resolution only
Lock Editing
Prevent document modifications, page insertions or deletions
Control Annotations
Allow or block users from adding comments and highlights
Form Permissions
Allow form filling without allowing other modifications
Strength Meter
Real-time password analysis with improvement suggestions