Protect PDF Files

Add password protection to your PDF files. Encrypt sensitive documents, restrict printing, copying, and editing. 100% secure local processing.

Process time: 3-10 seconds
Military-grade 256-bit AES encryption
No file uploads - 100% local processing

PDF Details

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Protection Settings

Enter a password
Confirm password
Password Protection: Users will need this password to open the PDF file.
Permissions (Optional)
Local Processing: Your PDF is encrypted and protected in your browser. No files are uploaded to any server. All processing happens locally.

Protecting PDF...

Status: Initializing encryption Security: 256-bit AES
An error occurred

PDF Successfully Protected!

Your document is now encrypted and secure

File Name: document_protected.pdf
Encryption: 256-bit AES
File Size: 0 KB
Protection Level: Password Protected

Your PDF Password

Save this password! You'll need it to open the PDF.

Important: Save your password in a secure place. If you forget it, you won't be able to open the protected PDF. We don't store any passwords or files.

How to Protect Your PDF in 3 Easy Steps

1

Upload PDF

Select your PDF file. Your file stays on your computer - no uploads to servers.

2

Set Password

Create a strong password to protect your PDF. Our tool checks password strength.

3

Download Protected PDF

Download your encrypted PDF file. Keep your password safe - it's required to open.

Frequently Asked Questions

Is this PDF protection tool really free?

Yes! Our PDF protection tool is completely free to use. There are no hidden charges, no subscriptions, and no usage limits. You can protect as many PDF files as you need without any cost.

Are my PDF files and passwords secure?

Absolutely! All encryption happens locally in your browser. Files never leave your computer, and we don't store any files or passwords. We use 256-bit AES encryption for maximum security.

What happens if I forget my password?

If you forget your password, you cannot recover the protected PDF. This is by design to ensure maximum security. Always keep a backup of your original PDF and store passwords securely.