fontpdf
Very often the font size in pdf files is too small. To read the document one has to continuously scroll and zoom the document, which I find really annoying, especially when several windows are opened. On the other hand in ebook readers (e.g. Kindle) there is the possibility to change the font size of a pdf file.
Do you know whether there is any pdf reader software for macOS that has this feature?
iBooks, the free ebook reading app from Apple, paginates both ebooks (in epub format) and pdfs. It is not instant, though.
So Preview does not have this feature, but more on that in a moment.
I would strongly recommend you take a look at f.lux.
f.lux makes your computer screen look like the room you're in, all the time. When the sun sets, it makes your computer look like your indoor lights. In the morning, it makes things look like sunlight again.
f.lux will adjust (you can modify the strength) the colour of the whole screen to make it easier on your eyes. You can set it to be on all the time, or automatically come on at night time. People love it.
Adobe Reader for Mac does support this. Once you install the 400MB app, you can change the background colour in Preferences (⌘ cmd + ,) > * Accessibility** . Check Replace Document Colours, and set the right colours you want.
Best Answer
Anyhow I found that using preview and the combination of commands cmd+ctrl+f the screen goes to two pages and it can be zoomed. This is comfortable enough for reading!