What encryption is used?

AES-256 encryption, applied directly in your browser before generating the file.

Is my file uploaded to a server?

No. Everything happens in your browser; your file never leaves your device. See the privacy page for details.

Yes, this tool is free and doesn't require sign-up or an account.

Upload a PDF and set a password to open it. AES-256 encryption, applied right in your browser.

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Drop a PDF here, or click to choose it

Taking your business security seriously? Mesa Cyber has a password generator, phishing analysis and cybersecurity checklists. See Mesa Cyber →