The kind of usage sought, the budget of the user, the support offered by the photo editor form important parameters that decide the choice of the best professional photo editing software.
The choice of a photo editing software depends on many factors. Primarily, it depends on the kind of usage that is being sought and the budget of the buyer. There are hosts of photo editing software that are available on the Internet which do not cost a penny. However, the drawback in them is that they offer very limited functionality. The first step that needs to be determined is what kind of performance a person looking for professional photo editing software is seeking. If a person, for example, is not very keen on editing images but only seeks to remove the red eye effect from the images then there would be no point in opting for an expensive photo editing software. It would be rather wise to invest in inexpensive software, which would take care of the basic need.