What feature in Photoshop or Illustrator can I use to really sharpen an image....REALLY sharpen an image......I am somewhat of a newbie.
Illustrator does not really sharpen per se. Much better to use Photoshop > Filter > Sharpen > Unsharp Mask. Start with a setting of: Amount = 150%; Radius = 1.5px; Threshold = 1 level. Experiment with different settings to get the results you are looking for.
Moved to Photoshop General Discussion