📄 PDFoomph — Free PDF Tools

🔒 About This Password Protect Tool

Keep your sensitive documents safe with our free PDF password protector. Add strong password encryption to prevent unauthorised access, printing or editing. Whether you're sharing a confidential business document or protecting personal records, the encryption happens right in your browser.

✨ Key Features

• Add 128-bit AES password encryption
• Set permissions: restrict printing, editing and copying
• Strong encryption — no one can open without the password
• No file size limits
• 100% private — no upload to servers
• Completely free with no registration

📋 How to Use

1. Upload the PDF you want to protect
2. Enter a strong password (12+ characters recommended)
3. Optionally set permission restrictions
4. Click 'Protect' and download your secured PDF

That's it! No registration, no email, no watermark — just fast, free document processing.

📄 Try the Password Protect Tool

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❓ Frequently Asked Questions

Is this tool really free?

Yes! PDFoomph tools are completely free to use. There's no hidden charge, no trial period and no watermark on your output files. Our tools are supported by minimal, non-intrusive ads.

Are my files secure?

Absolutely. All PDF processing happens in your browser using client-side JavaScript. Your files never leave your computer — we have no servers that receive your documents.

Do I need to sign up?

No registration or email is required. Just visit the page, upload your file and go.

What browsers are supported?

PDFoomph works on all modern browsers including Chrome, Firefox, Safari and Edge, on desktop and mobile devices.

Are there file size limits?

There are no hard limits, but very large files (500MB+) may be slower due to browser memory constraints.