🔥 SmokePDF

Password Protect PDF

Secure your private PDF documents by adding a password protection restriction.

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Select files Drag files here or click to select

Password

Confirm Password

🔒 Security Feature: The file is encrypted locally using secure 128-bit RC4 without uploading to external servers.

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📖 How to Use This Tool

1
Select the PDF document to secure.
2
Type and confirm a strong password.
3
Click 'Process Now' to execute.
4
Download the protected PDF copy.

🛡️ Local Processing & Security Features

100% Privacy: All processing is done locally within your browser. Your files are never uploaded to any server.
Lightning Fast: No time wasted waiting for uploads or downloads; processing is instant.
Free & Unlimited: Use the tool as much as you need with no account or registration required.

💬 Frequently Asked Questions

❓ Is my password saved?

Never. Everything is executed entirely in your browser window and no network database is involved.

❓ How can I unlock this PDF later?

You will need to enter the password when prompted by your PDF viewer to open it.