An information distribution system including an image data processing device, a server, and a portable telephone unit having an image data acquisition unit that acquires image data with a destination address attached thereto and a display unit that displays the image data. The image data is distributed from the image data processing device to the portable telephone unit, and advertisement information based on user information is extracted from an advertisement information storage unit and appended to image/text data by an advertisement information appending unit provided in the server.
