Adobe Photoshop Apple Mac

I have pushed down software with the K1000 appliance quite successfully over the last month or 2 but I have now been asked to uninstall Adobe Acrobat 9 on all our user computers and replace it Adobe Acrobat 11 . Im not intirely sure if this is even possible to un-install because if you can then DELL havent made it an easy process like pushing down software is.