A display system displays, on each of a plurality of display devices arranged side by side, among image data of a plurality of pages, each of image data of the number of display devices, and reflects input information, which indicates information input by a user, on image data displayed on a master display device among the plurality of display devices. Moreover, the display system displays, on each of the plurality of display devices, among the image data of the plurality of pages, each of image data which is obtained by shifting the image data of the number of display devices in accordance with an operation on a page operation unit. Thereby, a viewer is able to view image data of several pages at once, and it is possible to reflect information input by a user even when image data of a target page is shifted backward or forward.