To manage, with group ID, information on the amount of paper printed in an image forming apparatus that manages information on the amount of printed paper by use of group ID only, by inputting user ID, with a simple configuration.

A printer driver 303 issues a conversion request with user ID to a database server 101 via a utility 305, acquires department ID corresponding thereto, and transmits PDL data with the ID added thereto as print data to an image forming apparatus 20. An image processing unit 202 processes the print data to be printed on paper, and updates the number of printed sheets corresponding to the department ID in an MIB 204, via a print management unit 205. In a management apparatus 10, a management unit 104 periodically acquires the number of printed sheets for each department ID from each image forming apparatus by polling to update an overall department management table in a database 102.