In a cellular phone (201), text data (code data) corresponding to user's input operation is converted into first data format (BMP format or the like) image data. The image data is synthesized with input image data such as a photograph to be allotted in a given format. The image data arranged and synthesized in the format is converted into image data of a second data format (JPEG, GIF, or the like). The converted image data is then printed on a recording sheet (203) in a printer (202).