A mobile terminal including a wireless communication unit configured to wirelessly communicate with at least one other terminal; a touch screen; an input unit configured to generate input data; and a controller configured to activate a handwriting input function in response to the input data generated by the input unit, capture an image of a display screen being displayed on the touch screen, receive handwriting input received through the touch screen, generate output data corresponding to the received handwriting input, and generate a file including the generated output data and the captured image of the display screen.