PDF Lock / Unlock
Add or remove password protection from PDF files — 100% in your browser
Add a password to your PDF. Users will need the password to open it.
Drop your PDF here or click to upload
Single PDF file • Max 25 MB
Remove password protection from your PDF. You must know the current password.
Drop password-protected PDF here
Single PDF file • Max 25 MB
About This Tool
Free online PDF lock and unlock tool. Add password protection to your PDF files or remove existing password protection. Set permissions (print, copy, modify, annotate) for locked PDFs. Everything happens locally in your browser — your PDF files are never uploaded to any server. Perfect for securing confidential documents.
Lock PDF
Unlock PDF
Set permissions
100% private
No signup
Instant