Adobe Store Rocks, Upgrades and Bates Stamping

Adobe Acrobat 6.x, 7.x or 8.x Standard or Professional, can be upgrade to the Adobe Acrobat 9 Professional for $159.

Adobe Professional must be used to do Bates Stamping, so most attorneys will need the pro. 

The adobe store has a great chat window, where it was super easy to find all this information:

 

https://store1.adobe.com/cfusion/store/index.cfm?store=OLS-US&storeRegion=US&nr=0#loc=en_us&view=ols_prod&category=/Applications/AcrobatPro&categoryOid=1795555&store=OLS-US