To buy printed matter of an image of a posted poster relatively easily.

A picture code characteristic of the image of the poster, a homepage address as the contact place for a purchase of printed matter of the image, and the selling price are printed on the poster and posted in a station yard, etc. A client who looks at the poster and wants the printed matter of the image accesses the homepage entered into the poster by using a computer, etc., and sends data needed for an application. The client is able to apply for the purchase of the printed matter of the image relatively easily. Further, the use charge is managed so that the use charge can be paid to the copyrighter of the printed image.