Abstract: In general, techniques and systems for transmitting media objects to a media sharing service are described. In one example, a method includes generating, by a computing device, a unique identifier that identifies a media object and is associated with a placeholder object, wherein the media object is of a higher fidelity than the placeholder object, and generating, by the computing device, a media share request that commands a media sharing service to create a network-accessible post, wherein the media share request comprises the unique identifier and the placeholder object. The method also includes transmitting the media share request to the media sharing service and subsequently transmitting the media object and the unique identifier to the media sharing service, wherein the unique identifier enables the media sharing service to replace the placeholder object in the network accessible post with the media object once the media object has been received.