I have chosen Calibre 2.9 (Freeware) by Kovid Goyal as the featured application for this guide, because it provides not only multiple conversion possibilities, but also a great number of customization features and eBook management options, all for free. If you want a simple solution for this problem, you can convert your CBR comic book to the popular PDF format, a document file type that is supported by a large number of computer programs and devices. Since they contain both images and text, they often deserve a special treatment to be. Comic strips are a special kind of content. Yet, it is not always the one-size-fits-all format we need. With its wide support across platforms, PDF is quite convenient. However, this type of file has limited support and you might deal with, at some point, an application or apply an eBook reader that can't open CBR files. PDF is the most widely used format for regular documents. CBR is one of the filename extensions used for digital comic books that can be decompressed with WinRAR (or any other RAR file utility). There are many people that read their favorite comic book series in a digital form, because, even if the feeling is not the same as reading an actual book, their digital versions are easier to find and manage than the paper counterparts.