Jomic is a comic viewer for Windows and Mac, which allows viewing comic books stored in CBZ, CBR, and PDF format. It displays comics in a convenient two page mode, supports caching and many image formats such as PNG, JFIF/JPEG, TIFF, and GIF.
When you launch Jomics, it will prompt you to specify the comic book you wish to open. Select the comic book, and optionally, enable Open in full screen (if you want to view comics in full-screen mode), and click Open. The view menu allows you to view the comic in actual size, zoom (to fit height or width or the whole comic window to enable you to view it according to your screen size), (rotate comic left or right) and to view the toolbar and information.
As Jomics is an open source Java based application, it is available for both Windows and Mac. Windows users need JRE (Java Runtime Environment), whereas Mac users can download Jomics Disk Image (DMG). It supports Mac OS X 10.7 Lion and is also compatible with PowerPC Macs with Mac OS X 10.4 and 10.5.