Try leveling the pages until they are solid black in the areas that should be black.
It will reduce your file size and make the image look more neat and clean.
You can do leveling on every page in seconds with a photoshop batch action.
A simple google search will show you to do it.

Base +6, xederxeder +6, anya_ +10, @43883 +35, jfragrettel +8

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Base +6, jfragrettel +8

damn, need insulin supply

Base +6, jfragrettel +8

This is so Cute i want to kill myself because of this..

Base +3, jfragrettel +8, player4578 -6

http://www.doujinshi.org/book/957131/
RAW: Missing
Korean Translation: /g/1082705/39d2122e0c/

Base +50, jfragrettel +8