Presenter-View mode in PowerPoint can be very useful.
Today’s invention is a different viewing mode, for the authors of presentations, which allows them to see what their slides will look like to someone sitting at various locations in an auditorium.
This might be integrated in such a way that each presentation room in a large corporation or university could have its geometry, projector details and lighting characteristics accessible to the presentation program.
This would help avoid creating slides with illegible wording or imagery which was meaningless when viewed from an oblique-angled seating position. It might even be possible to have the program boost the slides’ contrast, increase fontsize etc automatically -to suit a particular set of viewing conditions.