How can the file sizes of pdfs vs cbzs vs epubs vary so wildly? On the top here the cbz is 1.2 GB while the epub is only 139.5 MB and the pdf 388.1 MB. At the bottom it's not exactly the other way around, but the pdf is way smaller than the cbz.
Why isn't one filetype always larger and another always smaller, and how can the differences be so huge? Tank Girl pdf >3x as large as cbz while Inuyashiki cbz is ~3x as large as pdf!? wtf!?