Runs entirely on your local device. Your files never leave your device.
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Yes. Protecting PDFs on FormatGrid is completely free, with no page count limits, file size caps, watermarks, or account sign-up required.
No. Encryption happens locally in your browser using client-side JavaScript. Your original file, the encrypted file, and the password you set are never sent to a server or stored anywhere.
Because FormatGrid never stores your password or your document, there's no way to recover a lost password. Make sure to remember it or save it in a secure password manager before closing the tab.
Yes. Use FormatGrid's Unlock PDF tool with the same password to remove the encryption and restore an unrestricted file.