Patent ID: 8694883

Claim:
A document management system comprising a document management server and an image processing apparatus that are connected via a network, the image processing apparatus comprising: a reading unit that reads a document and outputs document data; a property information generation unit that generates property information indicating an attribute of the document data output from the reading unit; a first transmission unit that transmits the document data and the property information to the document management server; a storage unit that stores, in a memory, the property information related to the document data transmitted by the first transmission unit; an addition unit that, on receipt, from the document management server, of error information representing that an error is contained in the property information which the first transmission unit has transmitted to the document management server, stores the received error information in the memory in association with the property information; a display control unit that displays, on a display unit, a modification screen for modifying erroneous property information if the error information is stored in the memory; and a second transmission unit that transmits modified property information input via the modification screen to the document management server, and the document management server comprising: a management unit that manages the document data and property information transmitted by the first transmission unit; an error information generation unit that analyzes the property information managed by the management unit, and generates error information if the property information contains an error; a notification unit that notifies the error information generated by the error information generation unit to the image processing apparatus; and an update unit that updates the property information managed by the management unit, in accordance with the modified property information transmitted by the second transmission unit.