Put it on the slide master (and title master, too). View | Master | Slide
Master.

Signature
Echo S [MS PPT MVP] http://www.echosvoice.com
What's new in PowerPoint 2007? http://www.echosvoice.com/2007.htm
Fixing PowerPoint Annoyances
http://www.oreilly.com/catalog/powerpointannoy/index.html
PPTLive! Oct 28-31, New Orleans http://www.pptlive.com
> Im looking to temporarily add thw word 'example' to my document so that it
> appears on every page - any idea on how to do this on poweropint without
> having to manually input it then take it out afterwards to each page!
>
> Help much appreciated.