An information processing device is provided that combines original image data and coded image data in a mutually non-overlapping manner. The information processing device generates coded image data to be combined with original image data. Next, the information process device determines whether or not the object region within the original image data and the generated coded image data region are overlapping. If it is determined that an overlap occurs, the information processing device modifies the shape of the coded image data region in accordance with instructions from a user. Next, the information processing device combines and prints the changed coded image data and the original image data.