1. An information processing apparatus, comprising: a first storing unit that stores usage limitation information indicating a policy of usage limitation of a document which corresponds to a pair of a stamp image corresponding to an image representing that the document is limited in use, and the number of the stamp images; a second storing unit; and a registering unit that refers to the first storing unit, extracts the stamp image from document image information obtained by reading a paper document containing at least one of the stamp images, obtains the usage limitation information corresponding to a pair of the extracted stamp image and the number of the extracted stamp images from the first storing unit, and registers the obtained usage limitation information and the document containing the document image information in correlation with each other into the second storing unit.