You can see the full list of apps here:
I would take a look at Photoshop or Illustrator.
Photoshop is a pixel based image processing program that is well suited for creating and editing digital images, especially photographs.
Illustrator is a vector-based program which is great if you want to create vector based graphics that you can scale up without losing resolution, such as a logo.
What you choose really depends on your needs and whether you will create bitmap or vector images.
These links might be useful: