Yeah, I'm done with this "scientific" tone, this PDF thing and so on. What is in this paper that couldn't be posted as HTML in a web page? How is PDF better compared to that?
You are probably thinking of the advertising whitepapers of scammy alt-coins and crypto-tokens. This is actually research.
If anything, a PDF designed for A4/letter is going to be cumbersome to read on a (probably rather small) 640x480 display.
The sad state of PDF rendering on (most) e-book readers should be evidence enough.
The kind of publication that has a distribution model based around print. Something that has usually been best served by PDF rather than html.