Hi, Interactive PDFs are extremely troublesome these days because there are countless PDF readers and they all support different interactive functionality, if at all. Long story short, you can't assume that any interactivity that you put into a PDF will work for someone. Exporting things out as EPUBs is also an issue as it requires someone to have a reader. I was going to recommend you try the Publish Online feature built into InDesign and I notice you're already using it from the link you posted. Can you not publish using this feature and have your classes within the LMS point to these assets? You were also talking about iframes which suggests you are using HTML based courses. Personally I would prefer to be incorporating these HTML based assets generated by InDesign as opposed to PDFs. Cheers
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