Provided is a portable information terminal capable of selectively displaying a display screen based on a single application, from among display screens of a plurality of applications, the portable information terminal including: a display unit which displays a display screen of a cooperation source application; a generation unit which generates, based on a start instruction which instructs to start a cooperation destination application, an image for background for the cooperation destination application by capturing the display screen of the cooperation source application. The cooperation destination application has, as a main display area, a display area smaller than an entire display area of the display screen of the cooperation source application. The display unit displays the image for background given from the cooperation source application to the cooperation destination application, in a peripheral area of the main display area of the cooperation destination application.