🔐 Password Protect PDF

Encrypt your PDF with AES — block opening, printing, or editing

🔒 Your image never leaves your device. All processing happens locally in your browser using pdf-lib + qpdf-wasm (client-side AES encryption). No upload, no server, no tracking.

Features

  • AES-256 Encryption — Industry-standard strong encryption for sensitive documents.
  • Restrict Actions — Optionally block printing, copying, or editing on top of the open password.
  • 100% Local — Your password and PDF never leave your browser.
  • Free & Unlimited — No signup, no watermark, no file-count limit.

How It Works

  1. Upload — Drop the PDF you want to protect.
  2. Set password — Enter a password (and confirm it).
  3. Encrypt — Click Protect — encryption runs in your browser.
  4. Download — Save the password-protected PDF.

Use Cases

  • Protect contracts or legal documents before emailing
  • Encrypt medical records before sharing
  • Secure tax returns or financial statements
  • Protect scanned IDs or personal documents

Frequently Asked Questions

What encryption is used?

AES-256 — the same standard used by banks and government PDFs.

Can I recover the password if I forget it?

No. Keep a copy of the original unlocked PDF in a safe place.

Does the password get sent anywhere?

No. Encryption happens in your browser; the password never leaves your device.

Can I restrict printing without requiring a password to open?

Yes — set only an owner/permissions password.

Is the encryption strong enough for legal use?

Yes, AES-256 is widely accepted for confidential and legal documents.

Related Tools

  • 🔓 Unlock PDF — Strip the password so you can open, print, or edit freely
  • 🗜️ Compress PDF — Reduce PDF file size with adjustable quality levels
  • 📑 Merge PDF — Merge multiple PDF files into a single document — all in your browser
  • 🔎 PDF OCR — Extract text from scanned PDFs — 100+ languages, runs in-browser