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Protect PDF

Add a password to a PDF so only people who know it can open it.

📄Toca para elegir un archivo PDFo suéltalo aquí

    Runs entirely in your browser. Your password is never sent anywhere — if you forget it, the file cannot be recovered.

    Cómo funciona

    1. 1Elige un archivo PDF.
    2. 2Set a password.
    3. 3Descargar the password-protected PDF.

    Sobre esta herramienta

    Encrypt a PDF with a password so it can only be opened by someone who knows it — useful before emailing sensitive documents. Encryption happens locally, so your password and file never leave your device.

    What happens if I forget the password?

    The file cannot be recovered or opened — keep the password somewhere safe.

    Is my password sent anywhere?

    No, encryption happens entirely in your browser.

    Can I remove the password later?

    Yes, use the Unlock PDF tool with the same password.