oh man, i haven't see an image rotated 90 degrees since i used a small device to store and look at my collections on the go. it made sense, the device had better quality if the image was tall instead of wide and some too wide never showed up.
@Derwqi That person (pornfannumberwhatevs) was talking about images like page 5 where the image is clearly meant to be viewed in landscape orientation. I think they thought you rotated them to be like that using an editor. Since it's originally in book format though I assume the pages were all the same orientation to begin with. If so, you can just ignore them.
@KVHF Thanks for the clarification, I did come to that conclusion with one of those "oh now I get it moments" after re-checking the images but I was unsure since I wasn't all too confident in the PDF extraction but it seems to be good.
Whatever DPI resolution this was extracted at, it's far higher than the actual image. Full size shows it's completely pixelated. Edit: It shows up as 72 DPI in photoshop, changing the resolution to 18 (1/4 of the DPI) get rid of the pixelation; but also the larger size...
@Tr2n (I'm not sure if these @'s even work) I can see that being a problem, I originally used a pdf extractor forcing me to select a DPI size without an original option so I went with the biggest because the other options we're pretty blurry, I used a website this time to re-extract it though I'm not sure if doing that whole "clone and unlock" thing would be a good idea since like you mentioned it does get rid of the larger size (the image viewer I use automatically resizes them in the window)