The original pdf were low resolution and blurry, but you somehow managed to get like 500 MB out of them. That's some filesize bloat! Looks like what you did was make very high quality jpgs based on low quality pdf which means you get high file size and all the blur!

Base +10, diablo888 +6, darumaruda +6, Sluice Gate +6, somedude1234symbols +7, GO_KENTA +11, rivar0 +6, KingSinzeo +7, EmbarrasedCat +5, Qwertius +15

Great, Square's policy on making everything bloated but worse now extends to their artbooks.

Base +15