- Choose Mode: Select 'Protect' to add a password, or 'Unlock' to remove one.
- Upload: Drag and drop or click to upload a PDF.
- Enter Password: For protection, enter and confirm a password. For unlock, enter the current password.
- Process: Click Process — the PDF is modified using pdf-lib.
- Download: Save the protected or unlocked PDF.
PDF Password Protect / Unlock — Secure PDFs in Your Browser
Our PDF Password Protect / Unlock tool lets you add password protection to PDFs or remove existing passwords — all processed entirely in your browser using pdf-lib.
Two Modes
🔒 Protect Mode
Add a password to any PDF. Enter and confirm a password, and the tool encrypts the PDF so it requires the password to open. Great for:
- Protecting sensitive documents before sharing via email
- Securing financial statements, contracts, or legal documents
- Adding a password to reports before uploading to shared drives
🔓 Unlock Mode
Remove password protection from a PDF you have the password for. Enter the current password and the tool creates an unprotected copy. Useful when:
- You own the document and want unrestricted access
- You need to merge or edit password-protected PDFs
- You want to remove password prompts from your own files
Privacy
Your PDFs and passwords never leave your browser. All encryption and decryption happens locally using pdf-lib's WebAssembly-powered processing.