Comment by reify

I used to always install Foliate when I installed a new linux distro though it only opens epub and not pdf's. The default on linux is Evince for Pdf.

Koodo is the way to go

However, more recently I have been using "Koodo" reader and library for both epub and pdf

It has a great visual library too. I only use Koodo now.

https://github.com/troyeguo/koodo-reader

http://aur.archlinux.org/packages/koodo-reader-bin