Hypersay is a great tool for making presentations both interactive, multimedia and digital. All you have to do is upload your existing presentations (PDF, PPT or Google Slides) to the platform and then you can start to add interactions such as questions, polls and surveys to each slide as well as links to websites and embedded videos.
https://quickshout.blogspot.com/2019/09/hypersay-for-creating-engaging-training.html