1. A printing apparatus which prints a composite image formed of a background image and input images on a recording medium, the apparatus comprising: a display; a detecting sensor configured to detect positions on the display; a printing mechanism; and a control device configured to: control the display to display the background image; determine a plurality of input regions, each input region being configured to have an input image inputted therein, the plurality of input regions being displayed simultaneously on the background image displayed on the display; for each region, sequentially: generate data of an enlarged image comprising an enlargement of: one input region which is included in the plurality of input regions, a part of another input region which is different from the one input region and which is included in the plurality of input regions, and a portion of the background image different from a portion of the background image in another enlarged image; control the display to display, in a predetermined area of the display, the enlarged image based on the data of the enlarged image; and control the detecting sensor to capture an input image inputted in the one input region included in the enlarged image displayed on the display based on a position detected by the detecting sensor; generate data of the composite image from data of the background image and data of the captured input image, the composite image not being an enlarged image; and control the printing mechanism to print the composite image on the recording medium based on the generated data of the composite image, wherein the input image captured by the detecting sensor is an image drawn by a user directly on the display in the one input region included in the enlarged image.