1. An image combining apparatus comprising: a control section which acquires first position information for identifying a figure drawn on a first medium from an electronic pen by using the first medium on which a pattern which is used by the electronic pen to detect a position of a tip of the electronic pen is combined with a background of a list of images, and identifies an image by using the position information by referring to information for associating each of the images with a position on the first medium, wherein the control section acquires second position information for identifying a figure drawn on a second medium from the electronic pen by using the second medium on which the pattern is formed, and identifies an image combining area by using the first and second position information, and then associates the image combining area with the image; an image processing section for creating a combined image by combining the image combining area with the image associated with the image combining area; and an output section for outputting data of the combined image.