[tomtomtom1]

that's interesting, so you use an iPad for your day to day programming?

from my experience converting ppt/word to pdf is a common enough use case that I would've assumed the majority of non-tech people run into it.

Latex is also a common case where you run into file extensions.

note I'm not expecting them to understand the difference between extensions, just what they mean and how to google how to convert between them.