This disclosure discloses a document management system comprising: a scan apparatus provided with an optical reading device configured to optically read a paper medium to be processed and to create image data corresponding to said paper medium; a radio frequency identification (RFID) label producing apparatus configured to produce an RFID label to be affixed onto said paper medium, having a tag communication device that carries out radio communication to an RFID tag circuit element provided with an IC circuit part storing information and a tag antenna that transmits and receives information in reading by said optical reading device; and a database configured to store said image data corresponding to said paper medium and tag identification information of said RFID tag circuit element provided at said RFID label corresponding to said paper medium in association with each other, provided inside said scan apparatus or separately from said scan apparatus.