Protect PDF
Add password protection and encryption to PDF documents.
Drag & drop a PDF file here, or click to browse
Supports secure processing up to 100MB+ per file
What is the Protect PDF Tool?
Our free online Protect PDF tool secures your documents by encrypting them with a password restriction.
How to Use Protect PDF
- 1Upload your PDF document.
- 2Enter a strong, secure password in the input field.
- 3Click Protect PDF to encrypt the file and download it.
Common Use Cases
- •Securing private contracts or statements.
- •Sending sensitive client reports over emails.
- •Restricting data access in company documents.
🔒 Privacy & Processing Notice
Your files are processed securely on isolated servers and are automatically deleted after processing completes. We do not store, share, or analyze your document content.
Frequently Asked Questions
What encryption is used?
We apply industry-standard 128-bit or 256-bit AES encryption to lock file permissions.
Can I recover a forgotten password?
No, passwords are not stored on our server, so be sure to save it safely.
Does it lock printing permissions?
Yes, standard readers will prompt for the password before showing contents or allowing print.
Is Protect PDF free to use?
Yes, Protect PDF is 100% free with no registration or hidden fees.
Is my data safe?
All processing is performed securely on our isolated engines. Files are completely deleted immediately after processing is finished.
Do I need to install software?
No, all tools work directly in modern web browsers across devices without plugins.