CONVERTCRAFT V3.0: THE NEXT GENERATION

Premium. Private. Pure Performance.

Experience Sub-2s processing speeds with our brand-new V3.0 engine. We've rebuilt everything to give you a Prime Experience where your files never leave your device.

WHY WE ARE DIFFERENT:

  • WASM Powered: Every conversion runs locally on your hardware.
  • Absolute Privacy: Your files are yours. No cloud, no tracking, no compromises.
  • Built for You: We've scaled this platform entirely out-of-pocket for a global creator community.

KEEP THE MISSION ALIVE: 🛡️

Running this infrastructure at this scale costs serious money. We don't sell your data, and we don't run annoying ads. We rely solely on users like you.

If ConvertCraft saved you time or kept your data safe today, help us keep it free and private for everyone.

[ SPEED: INSTANT ][ SWITCH: <100ms ][ LOAD: <2 SEC ]PRIVACY: 100%All systems OK

❤️ Support Our Mission / Donate

💎 Support the Mission ($4.99/mo)☕ One-time Donation

Every dollar keeps another 1,000 users private.

How to Password Protect a PDF Online

Add password protection and encryption to PDF files in your browser. Free, private, no upload — your documents stay secure.

Password-protecting a PDF ensures that only authorized recipients can open and read the document. This is essential for contracts, financial statements, medical records, and any sensitive information shared via email.

ConvertCraft's PDF Protect tool adds AES-256 encryption to your PDF entirely in your browser. The encryption process runs locally — your document never leaves your device.

To protect a PDF: open the PDF Protect tool, drop your file, set an owner password (controls permissions) and optionally a user password (required to open), and click Protect.

You can set granular permissions: allow or deny printing, copying text, editing, and form filling. The owner password controls these permissions while the user password gates access to the document itself.

The encrypted PDF is compatible with all standard PDF readers including Adobe Acrobat, Apple Preview, Chrome's built-in viewer, and Foxit Reader.

Open PDF Protect →

Frequently Asked Questions

What encryption does PDF protection use?

ConvertCraft uses AES-256 encryption, the same standard used by banks and governments. It is effectively unbreakable with current technology.

Can I remove a password from a PDF?

If you know the owner password, yes — use the PDF Unlock tool. Without the password, decryption is not possible.

What is the difference between owner and user passwords?

The user password is required to open the PDF. The owner password controls permissions like printing and copying. Both are optional — you can set one or both.