An object of the present invention is to provide a data distribution system which is suitable to distribute data to a mobile terminal device and the like to cause the mobile terminal device and the like to display an image, and a method therefor. In response to a request from a mobile communication device (2) through a web page distribution server (5), a web server (12) distributes document data shown in FIG. 2 to the web page distribution server (5). The web page distribution server (5) creates an image of the distributed document data, and divides the created image into a plurality of areas to thereby create divided area data. In response to the request from the mobile communication device (2), the webpage distribution server (5) sequentially distributes such components of the created divided area data as are to be actually displayed, to the mobile communication device (2). The mobile communication device (2) sequentially displays the divided area data distributed from the web page distribution server (5).