Booklet CE is an InDesign CS3 script that helps you to prepare booklets and newsletters for printing.
Three imposition types are supported: saddle stitch, consecutive, and perfect bound.
Booklet CE has particularly flexible printer mark options.
What's new in Booklet CE
Version 3.5: Better support for metric measurements
Version 3.4: More flexibility in number of pages for Consecutive printing
Version 3.3: New UI, and progress bar, for Booklet CE for ID CS3
Ability to run Booklet CE for ID CS3 from the File menu