I'm with Larry on this - it is a rather unusual request from the printer... unless there is a misunderstanding.
If this truly is correct and this is what the printer wants, try this script from Peter Kahrel (it will require your indesign file to be part of a book file, even though there is only one indd file):
http://www.kahrel.plus.com/indesign/pdf_individuals.html
this is untested by me but may offer a solution.