An image processing apparatus includes a first communication unit, an image processing unit, and an authentication unit. The first communication unit performs contactless communication using a radio-frequency identification (RFID). The second communication unit performs wireless communication. The image processing unit performs an image processing job. The authentication unit authenticates a user of the image processing apparatus. In a case where the authentication unit authenticates a user, the second communication unit starts the wireless communication with an external apparatus which has been identified by an identification (ID) communicated from the external apparatus. The image processing unit performs the image processing job using the wireless communication between the second communication unit and the external apparatus.