Many schools use Promethean Boards to display lessons and teacher material. It would be great if teachers could post these flipcharts in Canvas and have them rendered in preview mode instead of students having to download them. The base software used is ActivInspire so that is probably a better description of what needs to be visualized. This would be great on the internet site as well as the iPad app.
If the capability to preview is not possible, maybe an LTI could be produced to display the flipcharts.