For teaching purposes I would like to be able to handwrite on slides as I give a presentation, ideally with a Wacom graphics tablet which I already own commented to my Mac running Big Sur 11.4.
Powerpoint would work really well for this, unfortunately I am using Keynote to make the slides because I need the LaTeX support which Powerpoint doesn't have. So in particular I can't easily convert these slides to Powerpoint.
In Preview, I can annotate the document but only when it's not in Presentation mode. I also can convert them to PDF, though - that’s a bit of a hassle.
Is there a good way to annotate slides during a presentation for either a Keynote or PDF presentation?