Personal Purchase from:
https://www.suruga-ya.jp/product/detail/ZHOA13949

https://doujinshi.wiki/book/33020

From now on, my uploads will be in 600dpi. Well, I've always actually scanned my books in that resolution, however, when I started uploading, guides I read said that 300 was fine, so I downscaled. Also, I was downscaling because I had trouble with photoshop not leveling my pages correctly in automation. I could not get it to work with large resolution images, but it would when downscaled. I finally fixed the issue and feel really dumb after seeing the solution.

However, I do feel bad that previous books I uploaded had to be downscaled, so I'm probably gonna upload some of them in 600dpi somewhere and just link it in each book's respective comments section; especially STALLION and KRONOS. Apologies to anyone who wanted the previous books in larger resolution and to those who will hate the larger filesize. I know how important having these old books in archival quality is, so going forward, no books will be downscaled.