A delivery managing device to which a plurality of terminals are connected through a network includes a creating unit that creates display information based on operation information indicating an operation input accepted by a terminal; a converting unit that converts the display information into video information; and a delivery unit that delivers the video information to a terminal. When non-public operation information is received from a terminal, the non-public operation information indicating operation information not to be published to another terminal, the delivery unit delivers video information that is converted from display information not based on the non-public operation information, to the other terminal.