Reply To: Multiple page sizes within a multi-page document???

You need a new printer. It is insane for you to try to manage imposition creep manually.

You can set different page sizes in CS5, but not earlier versions. But even if you were to manage the “creep,” you wouldn't change the page size, you'd just move the objects toward or away from the spine.

But you should not be doing that! That is what imposition software is for, and that's something your printer should be doing, not you as an InDesign user.

If your printer balks at this, please print this message out and hold it in front of their face: Dear Printer, You should be ashamed of yourself, asking people to work in printer spreads!