An on-line VBI printing system that includes one or more cryptographic modules and a central database. The cryptographic modules are capable of implementing a variety of required security standards. A client system provides a user friendly GUI for facilitating the interface of the user to the system. The GUI system includes wizards that help the user step-by-step with processes of registration, logging into the system, and printing the VBI. In one aspect, the invention describes an on-line system for securely printing an advertisement on a VBI.