A computer-implemented method includes providing, from a server including one or more processors, a user interface element to a first computing device, wherein the first computing device is associated with a user, and the server determines that the user is associated with a second computing device that is a mobile computing device having a digital display and is logged into an account at both the first and second computing devices. The method further includes receiving a user request for a rendering of a document issued by the first computing device upon selection of the user interface element by a user, and transmitting a command to the second computing device that causes the second computing device to automatically display the rendering of the document. The method further includes receiving and storing annotation information corresponding to one or more annotations to the rendering made at the second computing device.