There are lots of photo editing software. How to choose a photo editor for youself depends on your budget and image editing needs. You also need to think about the price of the photo editor software, and how long do you need to learn to use it. Professional software is expensive and might need to take a class in order to overcome the steep learning curve.
If you just want to edit your digital photo for some special effects, or if you don't have many experience of editing picture, Frame Photo Editor is a good choice.