There is provided a transmitting apparatus including an image data output unit that outputs stereoscopic image data including left-eye image data and right-eye image data for displaying a stereoscopic image, a data transmitting unit that transmits the stereoscopic image data output from the image data output unit to an external device through a transmission path, and an information acquisition unit that acquires information related to a screen size from the external device through the transmission path. The image data output unit outputs the stereoscopic image data suited for the screen size obtained from the information acquired by the information acquisition unit.