[anigbrowl]

not adaptive for mobile

I look at pdfs on my phone all the time, it's great. 'Optimized for mobile' usually means oversized fonts and a shitty UI so I get RSI in my thumb from endless scrolling.

PDF is kind of an ugly format, but the problem with realtime text flow etc. is that designers are (at the behest of clients) are always trying to look visually distinct and as a result nothing is standardized or predictable at the rendering end. 95% of digital layout is ass compared to the print version.

[yonatan8070]

It works, but that doesn't mean it's good. A document designed to be printed on an A4 page isn't easy to read when scaled down to the size of a phone, especially for people with suboptimal eyesight, and if you zoom in to read the text, you need to scroll horizontally for every line you want to read

[anigbrowl]

I'm aware of all that, although your complaint about zooming in is easily fixable by turning the phone sideways. My point is that PDF remains popular because it's predictable and because print layout standards are generally better than dynamic ones. That's the problem to address: people's desire to read longform text in a consistent way without being continually derailed by interactive cruft.