4Easysoft PDF Cutter
cut pdf file by every n page(s)/bookmarks, divide multi-page pdf file averagely.
4Videosoft PDF Splitter
assign every n page of a pdf file to carry on a one time division exactly.
VeryUtils PDF Margin Cropper
veryutils pdf margin cropper tool can be used to remove excessive white borders.
Tipard PDF Cutter
split pdf file by pages, bookmarks and page ranges, split pdf averagely.
Aiseesoft PDF Splitter
it can split any multi-page pdf file to some small pdf files.