Features

 - View .epub, .mobi, .azw, and .azw3 files in two-page view or scrolled view
 - Customize font, line-spacing, margins, and brightness
 - Light, sepia, dark, and invert mode, or add your own custom themes
 - Reading progress slider with chapter marks
 - Bookmarks and annotations
 - Find in book
 - Quick dictionary lookup with Wiktionary, Wikipedia, and dictd, or translate text with Google Translate
 - Touchpad gestures—use two-finger swipe to turn the page
 - Basic text-to-speech support with eSpeak NG and Festival

Website: https://johnfactotum.github.io/foliate/

Documentation: https://github.com/johnfactotum/foliate/wiki

A PPA is available at https://launchpad.net/~apandada1/+archive/ubuntu/foliate. To install run the following commands.

sudo add-apt-repository ppa:apandada1/foliate
sudo apt update && sudo apt install foliate