Using Distiller to Build Booklets
http://teched.vt.edu/gcc/HTML/VirtualTextbook/PDFs/AdobeTutorialsPDFs/Acrobat/DistillerToBuildBooklets.pdf

Virginia Tech

Abstract:

Adobe InDesign and Adobe PageMaker include utilities that create booklets using a simple page imposition routine. However, other applications such as Adobe FrameMaker or Microsoft Word do not have these utilities and leave users with a bit of a dilemma when they want booklets made. Using Adobe Acrobat Distiller and a simple PostScript file (sig.ps), you can create booklets from EPS (encapsulated PostScript) pages printed from your application. The PostScript file takes the EPS files and arranges them on pages in a single PDF document. This technical guide briefly explains impositions and signatures and provides instructions for editing the associated sig.ps PostScript file used to create a booklet. Knowledge of PostScript may be helpful but is not absolutely necessary; you need only to make a few clearly explained edits for the sig.ps file to work with any documents you have.