An image forming system includes an image forming apparatus and a management server. The image forming apparatus reads a surface image of an ID card, outputs a copy print including the ID card surface image and address information that indicates an address in a management domain managed by the management server, and transmits card copy information including the ID card surface image and the address information to the management server together with a registration request. The management server receives the registration request and the card copy information, stores the ID card surface image and the address information in the card copy information, into a predetermined storage device in association with each other, receives a browsing request, and identifies address information included in the browsing request, and transmits a surface image of an ID card associated with the identified address information, to a transmission source of the browsing request.