Interactive broadcasting between devices

A computer-implemented system, comprising:

• a presenter device, wherein the presenter device comprises:
• a hardware-implemented broadcast module configured to send, to one or more viewing devices, first content of a first file and first state information associated with a first state of the first content being displayed on the presenter device;
• a hardware-implemented state management module configured to receive a notification indicating additional content to add to the first content in the first state including receiving the notification from a first viewing device of the one or more viewing devices and further configured to generate second state information associated with a second state of the first content using the notification, the second state relating to the additional content added to the first content in the first state, wherein the hardware-implemented broadcast module is further configured to send the second state information from the presenter device to the one or more viewing devices;
• and
• a hardware-implemented presenter device display module configured to display the first content in the second state on the presenter device.

A non-transitory machine-readable storage medium having instructions which, when executed by one or more processors, cause the one or more processors to perform operations, comprising:

• sending, from a presenter device to one or more viewing devices, first content of a first file and first state information associated with a first state of the first content being displayed on the presenter device;
• receiving, at the presenter device, a notification indicating additional content to add to the first content in the first state including receiving the notification from a first viewing device of the one or more viewing devices;
• generating, at the presenter device, second state information associated with a second state of the first content using the notification, the second state relating to the additional content added to the first content in the first state;
• sending the second state information from the presenter device to the one or more viewing devices to display the first content in the second state on the one or more viewing devices;
• and
• displaying the first content in the second state on the presenter device.