Cool Reader 3 is multiplatform e-book viewer
with support of TXT, FB2, HTML, RTF, CHM, EPUB, TRC file formats.
Fully supports FB2 format: tables, footnotes, CSS based formatting.
Autodetects TXT file format and encoding, and reflows it for easy reading.
Supports table of contents, search, bookmarks.
Supports window and fullscreen modes, paperbook-like pages or scroll view.
Book formatting is customizable using CSS files.
For versions of Ubuntu between 14.04 LTS (Trusty Tahr) and 15.10 (Wily Werewolf), as well as Ubuntu flavours that don’t include snap by default, snap can be installed from the Ubuntu Software Centre by searching for snapd.
Alternatively, snapd can be installed from the command line:
sudo apt update
sudo apt install snapd
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
To install coolreader3, simply use the following command: