Method and device for customizing configuration of printing application

A method of customizing a configuration of a printing application of a mobile terminal, a mobile terminal, and a system are provided. The method includes establishing a wireless connection with an image forming device by using tag information written on a near field communication (NFC) tag of the image forming device, receiving usage authority information representing a function allowed for a user of the mobile terminal among functions of the image forming device, and selectively installing at least one plug-in corresponding to the usage authority information among a plurality of plug-ins that the printing application supports.