WebinarJam is based off of the Google Hangouts platform, which controls the way presentations appear, and generally that means it doesn’t work in full screen mode.
Here’s a great article from Google on how to manage powerpoint and keynote presentations
Basically, once you log in to the live room as an admin, detach the WebinarJam admin sidebar and pin it to the right side of your desktop so you have plenty of space in your desktop to run the powerpoint presentation.
Then, in your PowerPoint menu, go to Slide Show -> Set Up Show -> select ‘Browsed by an individual (window),’ then it shows the full window.
The presentation won’t go full screen, but instead the presentation itself will be contained within its own window so you can simply select to screenshare-broadcast only that individual window, and thus effectively achieving the same effect as if you were full screen.
Keynote works well if you export it first to Quicktime, then you can page through the presentation and preserve your animations.
But for the best results, skip animations (always a good idea with streaming video) and convert your presentations into pdfs. You can page through the pdf file just like a powerpoint, with far less use of your system resources.
