When it comes to photo editing,there is no doubt to chose Photoshop.But you've been formally trained,this application is difficult to learn,it is very expensive there's is no doubt it is a great program.If you are the home user there is no need to use Photoshop.Here I am providing you with great downloadable photo editing software.These application are much similar as Photoshop you can do anything that you can do in Photoshop,and Best thing is that these softwares are totally free.
Paint.NET
It is a great free photo editing software easily available.It is also a good video editing software.It is strong in image editing.It comes with the options like resize and rotate photos,includes curve tool. It has its own special effects and wide variety of powerful tools.It contain almost all tools that every Photo Editing Software must have.Gimp
It is best image editing software available for free.This free image editing software includes most of the rich features of Photoshop,as it is much similar as Photoshop.If you have image editing experience than you can make a simple image to a wow image in a few minutes.It allows you to change colors,widget spacings and icon size to custom tools set in the toolbox.It provides a lot of features that any free image editing software cannot.Photoscape
Photoscape is a funny image editing software.It helps in viewing photos in a folder and creates a slideshow.You can color adjustment ,white balance,backlight correction,balloons,red-eye removal and many more.It combines multiple photos and create GIF image.It converts RAW to JPEG from DSLRs.
Irfan View
It is one of most popular image viewing application but it contains many editing tools.It can view,edit and convert image files and play video or audio files.It is very easy to use it is noted for its small size.You can crop,set brightness and contrast and add captions.It contains many special effects.