Protect PDF
PROTECTAdd password protection to your PDF before sharing or storing it securely.
⚡ Free to use
🚫 No signup
🛡️ Your files are processed in your browser
Drop your PDF here
or click to browse
Supports PDF files only • Max file size: 50MB
How It Works
1
Upload PDF
Choose or drag & drop your PDF file.
2
Set Password
Enter and confirm your password.
3
Download
Get your password-protected PDF instantly.
FAQs
Is this tool really free?
Yes, 100% free with no hidden fees, subscriptions, or limits.
Can I recover my password if I forget it?
No. The PDF is encrypted with industry-standard cryptographic encryption. We never see or store your password, so it cannot be recovered or reset if forgotten.
Is my file safe?
Yes. Your PDF is encrypted entirely in your browser using the Web Crypto API. Neither your document nor your password is ever uploaded to any external server.
Does this tool add restrictions like printing or editing?
This tool adds standard open password protection, which requires the password to open and view the document. Additional permission restrictions (like print/edit blocking) are not applied in this version.
What file size limit is there?
You can protect PDFs up to 50 MB directly in your browser.