Protect PDF
Protect PDF files with a password. Encrypt PDF documents to prevent unauthorized access.
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About Protect PDF
Password protect your PDF files online for free. Add encryption to prevent unauthorized access, restrict printing, copying, or editing of your sensitive documents.
When to use it
Essential for protecting confidential documents, financial reports, legal contracts, medical records, or any sensitive information before sharing via email or cloud storage.
Step-by-step
- Upload the PDF you want to protect
- Set an open password (required to view)
- Optionally set permission restrictions
- Click "Protect PDF" to encrypt
- Download your password-protected PDF
Frequently asked questions
How secure is the password protection?
PDFs are encrypted using industry-standard algorithms. The strength depends on your password — use a strong, unique password with letters, numbers, and symbols.
Can I remove the password later?
Yes. Use our Unlock PDF tool to remove the password from your protected document at any time (password required).
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