Just imported a PDF into a board for the first time and my expectation was that it would be contained in a viewer that allowed me to page through. However, it instead broke out every page onto the board as well as assets within.
Based on this not sure if there is an option for a viewer that I might be missing. I could see cases for both options, kind of like a simplified vs expanded option. This would probably apply to PPTs as well but haven’t tested that yet.