Oh ! I see what you mean.
If you convert your pages online, the website should compile your pages into 1 PDF file (but still acknowledge that they are different pages when open it, if that make sense so it should be easy to load up).
When reading your PDF, for the scrolling to work I think it will depends on how people set their PDF reader.
I have mine set on "enable continuous scrolling" but if I don't, the page will turn as I scroll down.