While the CBZ is twice the size of the PDF, it still suffers from moiré patterns - even fully zoomed in (so its not just the viewer). I've just downloaded the first volume of Blame! and compared the CBZ, EPUB and PDF. And Humble, or Kodansha or whoever just don't seem to care.Įven going back to older bundles suggests that I should take a closer look if I really want the best quality. Resizing or compressing these images into greyscale JPGs tends to result in unattractive outcomes. I think a lot of the issue comes down to the fact that the source images are mostly bitmapped images with lots of halftone screens. I had to open each PDF in Photoshop as greyscale images at 1200 dpi and then batch convert them to bitmapped images, before zipping them up in a CBZ. The PDFs, which is not a format I want to use to read manga, was perfectly fine. So I downloaded EPUBs, even creating a little python script to convert EPUB to CBZ, only to discover that the EPUBs still had issues.

The CBZs had disgusting moiré patterns all over them. I noticed it myself with the latest Monogatari bundle. This is something I've noticed myself lately, and it led me to redownload a whole bunch of manga from past bundles and go through lengthy conversion processes to try and create the best quality CBZs myself. A little late to the party, but thought I'd join in regardless.

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