An image forming system includes a plurality of image forming apparatuses, a client computer, and a print server. The print server requests, in response to a new connection of the plurality of the image forming apparatuses to the network, a resource related to the image formation process available for the plurality of the image forming apparatuses, and a license key including a validity term of a license for using the resource in the print server to the newly connected image forming apparatuses. The print server stores the resource and the license key provided by the plurality of the image forming apparatuses and registers resource information related to the resource and the license key in a database of the print server.