Copy system, image forming apparatus, server, image formation method, and computer program product

摘要

A copy system comprises: a server identifying a second electronic document corresponding to a first electronic document; and an image forming apparatus that forms a second code image on a medium instead of a first code image in accordance with an instruction to copy the medium, the second code image corresponding to the second electronic document identified by the server, the first code image corresponding to the first electronic document and being formed on the medium.