OpenComic is an open-source comic and manga reader that works on Windows, mac OS, and Linux. It’s written with Node.js and using Electron. And features:

• Support image formats: JPG, PNG, APNG, GIF, WEBP, SVG, BMP, ICO
• Support compressed formats: PDF, RAR, ZIP, 7Z, TAR, CBR, CBZ, CB7, CBT
• Manga read mode
• Double page view
• Bookmarks and continue reading
• Floating magnifying glass
• Reading in scroll or slide

The software offers official snap package, which runs in sandbox and can be easily installed in Ubuntu 18.04 and higher via Ubuntu Software utility:

The Ubuntu native .deb package is also available to download at the link below:

Grab the 64-bit (amd64) package and click install via Gdebi package installer and done.

Uninstall:

To remove the snap packge either use Ubuntu Software or run command in terminal:

sudo snap remove opencomic

To remove the .deb package, open terminal (Ctrl+Alt+T) and run command:

sudo apt remove --autoremove opencomic[re>