Image display device, image data transmitting device, image display system, image display method, storage medium storing an image display program, image data transmission program, and storage medium storing the image data transmission program

Upon receipt of operation entry for processing and editing a currently displayed slide, an operation information generating section generates operation information corresponding to this entry. An operation information reflecting section performs editing on the basis of the operation information and stores the operation information regarding the editing in a storage section. Upon receipt of slide data from the server device, the operation information reflecting section reads operation information of the past regarding this slide data, and generates a display screen in such a manner that editing corresponding to the read operation information is reflected in the received slide data. This makes it possible to display slide data stored in the server device on an image display device in a manner that a user wants, without increasing load on the server device.