1. A mobile terminal comprising: a touchscreen configured to receive an input of a handwritten character; and a controller configured to: recognize the handwritten character in real-time, control the touchscreen to display one or more candidate text characters that correspond to the handwritten character, save the handwritten character as an image, save one of the one or more candidate text characters as a confirmed text character that corresponds to the handwritten character, and link the confirmed text character to the handwritten character.