Thanks guys,
Here's my new theory:
1) first print to file using cutepdf or something similar; when you go to print, print two copies and select collate--or is it deselect collate?--whichever way makes it so that you duplicate pages throughout the document.
2) next, do a batch 180 degrees...
Sorry to dredge up the past--I'm sincerely looking for a way to split the pages in pdfs of scanned journals/books--all academic stuff covered by fair use rules. I want to be able to read these pdfs on my kindle without having to zoom in.