extension, unless -overwrite is specified. The output file(s) will always be saved to the current directory as filename. With no arguments passed, it will try to repack the file(s) with slightly more compression. Linux, MacOS, and Windows: python -m pip install reCBZĪccepts a valid. If you're on the latest Python version (3.11), you may need to manually install lxml first: pip install Upscale, downscale, desaturate, and convert comic book pages (or images in general).Ĭonvert them to lossy or lossless formats.ĭo this automatically to try to reduce disk space.Ĭombine multiple files into a single contiguous book (transform multiple chapters into a single volume).Ĭonvert CBZ files into fixed-layout EPUBs, with support for most Kindle & Kobo devices. This now has a few other tricks up its sleeve which exist mainly to make the process of managing a manga library (a patchwork of individual chapters downloaded from dynastyscans) less frustrating, as well as supporting conversion to EPUBs, as the traditional tool for this, KCC, has been unmaintained for some time (and is somewhat fiddly to install on Linux). Simply put, the amount of pixels in most comics, and the compression used to store those pixels (or lack thereof), is usually overkill for the type of screens I read from, and this program attempts to rectify that by doing hundreds of simple but tedious image operations in just a few seconds. Over the 11 published volumes, that amounts to over 1GB saved (which is a lot when you consider many e-Readers still have only 4GB)! And that's without touching the resolution, the size can be further reduced by another 50MB by downscaling to the actual display resolution - easily tripling the amount of manga that can be stored on your device, while maintaining the same perceived quality. cbz files in bulk so they use less space on my Kobo.įor example, by repacking with WebP with the default settings, this can cut the size of the first volume of Chainsaw Man from 180MB to just under 96MB, without affecting image quality. I prefer to keep the original files intact on Calibre on my computer, but use this tool to optimize the. This isn't really a problem most of the time, but it limits what I can put on my Kobo e-Reader (which has "only" 32GB of storage). I own a large digital manga library, which unsurprisingly uses a lot of space. Originally, I created this to save disk space.
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