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Best PDF Password Protection Tool Online — Free & Secure

Need to secure your PDF with a password? DocCraft’s free online PDF protection tool lets you add strong AES encryption to your PDF files. Protect single or multiple PDFs at once with password strength feedback. All encryption happens in your browser for maximum security.

📂

Drop PDF files here

or click to browse and select files

📁 0 Files Selected

🔑 Set Password Protection

💡 Set a password above, then protect files individually or all at once
Processing...

How to Password Protect a PDF Online

1

Upload PDFs

Drag and drop your PDF files or click to browse. Upload one or multiple PDFs for batch protection.

2

Set a Password

Enter and confirm your password. Our strength meter helps you choose a secure password.

3

Download Protected PDFs

Click Protect to encrypt your files and download them with password protection applied.

Why Choose DocCraft’s PDF Protector?

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AES Encryption

Industry-standard AES encryption keeps your documents secure from unauthorized access.

📦

Batch Protection

Upload and protect multiple PDFs at once with the same password, saving you valuable time.

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Password Strength Meter

Real-time feedback and recommendations help you choose a strong, secure password for your files.

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100% Client-Side

All encryption happens in your browser. Your passwords and files never leave your device.

Frequently Asked Questions

How does PDF password protection work?

Our tool encrypts your PDF using AES encryption with your chosen password. Only the correct password can unlock the document.

Can I protect multiple PDFs at once?

Yes! Upload multiple files and protect them all with the same password in one click.

Is my password stored anywhere?

No. All encryption happens locally in your browser. Your password and files never leave your device.

Is it free?

Yes, DocCraft’s PDF protection tool is 100% free with no watermarks, no limits, and no registration.

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