PDF articles with multiple columns look good on paper, but they are a major pain in the a… to read on a display under 22 inches. There is a small little tool called Tofu, which rerenders documents in a way, where you just have to scroll horizontally instead of scrolling vertically to the beginning of a column again.

You can even cut´n paste a webpage on the window to get a columned version of the text:

You loose parts of the layout, but it´s much easier to read ….