pauland you are missing the obvious. You are not installing a website, you are placing a number of files in a local filestore or running the same from media. I did not suggest I had Dropbox in my scenario.
In the real world I have had to arrive at a lecture with no advance knowledge of the set-up. PowerPoint available was many versions behind by own one, no external devices were allowed, media was sanitised on arrival. A PDF wouldn't cut it.
iPads and mobiles have browsers. "How do I see this on my iPad again? How does this work on my phone again?" equally apply to a PDF or PowerPoint file.
I used to "install a website" (integrate) into Enterprise SharePoint as the end-users did not want to break out into PowerPoint. The same client blocked all Internet access as well.
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