A communication terminal receives display data for displaying certain data on a screen of a display device and image data of an optical-to-electrical-converted image from another communication terminal via a communication network, includes a storage part storing reception information indicating whether the display data has been received by the communication terminal and arrangement information indicating at least one of a size and a position of the image based on the image data, in a manner of associating with one another; a reception part receiving the display data and the image data; an extraction part extracting, based on the reception information, the corresponding arrangement information from the storage part; and a display control part displaying the image using the image data based on the arrangement information extracted by the extraction part.