pptx isn't bad. Indeed, you have more structure available than just text dumps. It's just a zip file containing a bunch of XML. And the slides XML isn't beau

pptx isn't bad. Indeed, you have more structure available than just text dumps. It's just a zip file containing a bunch of XML. And the slides XML isn't beautiful/super nice but not super ugly either. Naively processing it is lossy, but not as lossy as converting it to text. And most images end up as png in them. The most annoying thing is images with data (like equations).