A system database stores client data, manuscript data, publication instruction data and sales data related to magazine editing and various data constituting a user and various information magazines. An image database stores image data to appear on an advertisement. An editing and imposition device fetches publication data accumulated in the database, performs automatic layout of a manuscript, and creates a page-up manuscript. An editing layout device displays the page-up manuscript and image data stored in the image database as a block copy image. A user terminal inputs client data, publication instruction data, manuscript data and sales data. A web application server executes a search request or an update request from the user terminal for data to the system database and the image database. The user terminal and the web application server to communicate with each other through an Internet network to enable a user to freely perform automatic editing.