[sethammons]

A pdf should not reflow nor be responsive. Aside from zoom/pan, how else could you possibly interact? I think it works fantastic, like holding a magnifying glass and panning around a surface

[wittjeff]

https://helpx.adobe.com/acrobat/using/reading-pdfs-reflow-ac...

[lostlogin]

Oh wow, that’s awful. ‘Like the web, but on a pdf and done entirely by Adobe.’

[wccrawford]

That's exactly why they're saying it's "not responsive". It wasn't designed to be, and it's not.