Photo editing is an essential skill if you want to become a master photographer. No matter how well you frame a shot or adjust the lighting, there are always a few tweaks you can make.
If you're just starting out in editing, jumping right into power programs like Photoshop or GIMP is going to overwhelm you. But if you want to do more than cropping, you need something other than a basic editor.
Photoscape is a good choice of the intermediate user. It offers basic editing tools that are reasonably automated. However, you can go to the next level and tweak the settings to get exactly the effect you need.
Once the program is running, just go to the Editor tab at the top and pick photos to edit from the folders on the left.
In addition to editing, Photoscape includes a batch editor for modifying multiple photos at once, a RAW converter, the ability to make animated GIFs and more. It can also layout photos in page format, combine photos, create animated images and do much more.