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PDF tool

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

Result

Your processed result will be ready here. The files stay in this browser tab.

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.

Keep exploring

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Keep your tools and files together with Matrix

Utilities brings everyday text, file, and developer tools into Matrix. Some advanced browser tools remain on the website. The desktop client connects to your private Matrix cloud computer, which requires a paid plan.

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