Protect PDF with Password
Encrypt a PDF with an AES-256 open password directly in your browser before sharing it.
Free browser tool
No Matrix computer needed
✓ No account or card
✓ Use the result right away
✓ Task-specific limits below
Workspace
Use protect pdf with password
Runs in this browser tab
Result
How to use it
Choose a PDF and enter a password of at least 12 characters to create an encrypted copy.
What to check
Keep the password separately. PDF viewer support varies, and a recipient with the password can save a decrypted copy.
Review the result before using it in a published page, application, or agent configuration.
Quick answers
Frequently asked questions
What protection does the PDF password add?
The output uses an AES-256 open password. A recipient needs that password to open the encrypted copy in a compatible viewer.
Can a recipient still save a decrypted PDF?
Yes. Someone who knows the open password can view and save content. Share the password separately and choose a strong unique value.
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