Difficulty reading scientific papers in two columns It sounds stupid, but I came to realize that it's significantly more difficult for me to read scientific papers when they are typeset in two columns than papers in which the text appears in one column. Something about multiple columns feels too "packed" and wearisome to the point that it takes me a lot more time to read than a single-column paper.

Each publisher chooses its own style, obviously (an interesting discussion about it here), but what I want to know is if there is any way to transform a two-column paper into a one-column paper for an easier read? Are all papers being published with a single typeset according to the publisher's preference, or perhaps there may be different versions in different databases?
If the paper has a preprint on on https://arxiv.org/
you can select to download "Other Formats".

Then you can probably get the LaTeX source (if it was typeset in latex),
and from there you can modify it (likely very simply) and recompile it.