Protect PDF

Protect PDF with Password

Add 256-bit AES password protection to any PDF. Free, instant, and 100% private. Files never leave your device.

🔒 Files never uploaded⚡ Instant processing♾️ Free forever✓ No sign up

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256-bit AES encryption. Your file and password never leave your device.

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Drop your PDF here or click to browse

or click the button below to browse your files

Password

Confirm Password

💡 Use at least 8 characters with letters, numbers, and symbols for best security.

Frequently asked questions

Is password protecting a PDF on PDFcraft really free?+

Yes, completely free. No hidden fees, no premium plan needed. All tools on PDFcraft are free forever with no limits.

Are my files safe when I add a password?+

Absolutely. PDFcraft processes files entirely in your browser using WebAssembly. Your PDF files never leave your device and are never uploaded to any server.

What type of encryption does PDFcraft use?+

PDFcraft uses 256-bit AES encryption via QPDF WebAssembly — military-grade security used by banks and governments worldwide.

Can I remove the password later?+

Yes. Use PDFcraft's Unlock PDF tool to remove the password. You will need to enter the current password to do so.

What happens if I forget the password?+

Unfortunately there is no way to recover a forgotten PDF password. Always store your passwords safely in a password manager before protecting a document.

Does it work on iPhone and Android?+

Yes. PDFcraft works on any device with a modern browser including iPhone Safari and Android Chrome.

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