Convert container format without modifying images

[alexandernst]

Is it possible to, somehow, convert from cbr to cbz (rar to zip archive) without modifying the images? I'd like to leave everything as-is, and just change the container format.

I tried --quality=100, but that apparently increases the size of each image.

[gen2brain]

There is no such option, but you can try with --no-rgb, which will skip all files that are not grayscale, assuming all images are not actually grayscale.

[gen2brain]

I added --no-convert option that will just copy files.