RayViewer is a comic viewer specially designed to read digital comics. Its main interface is divided into two areas: the main window where you can see the comic and a a browsing window where you can browse along pages. There's also a toolbox which you can show or hide and from where you'll be able to change the program's main configuration options.
RayViewer features keyboard shortcuts for the most important actions, from turning the comic page to applying several filters to the image. These filters allow you to review your comics with a better image quality, by reducing noise, improving focus or increasing contrast, to name a few.