This program is a vector-based product originally created for digital illustrating hence the name. It has since boasted web worthy output and an all round package for every aspect of image editting.
  Illustrator used to be the grand-daddy of all image editors but presently the cost is way less than it's sister, Photoshop.
   Photoshop is still the most worthy pick between these for web consumption however, the format abilities in Illustrator make it highly useful for remote purposes.