API guide link: https://www.pdffiller.com/en/features/api.htm
Link to authentication page: https://www.pdffiller.com/en/features/signer-authentication-and-security.htm
- Name: Required: Name the connection.
- Connection type: Required: The form will automatically select PDFfiller.
- Click Save & Authorize. The following page displays:
- Enter your registered email address and password.
- Click Log In. The following page displays:
- Click AUTHORIZE to establish the connection.