Provided is an image that is comfortably viewed and operated by a user. An electronic device acquires user information related to a relative position between a user and a display unit. Then, the electronic device transmits the user information to an information processing device. The information processing device includes a communication unit and a control unit. The communication unit receives the user information related to the relative position of the user and a display unit which is acquired by the electronic device from the electronic device. Further, the control unit performs control to decide a display mode of an image transmitted from a source device on the display unit on the basis of the user information received from the electronic device.