Here's some recommended Freeware Image Editors
... and Viewers
To show one of Elements Features, The Shadow/Highlight tool ... I tried to find a photo with Problems.
Elements knows what is Light and Dark .. And I told it to bring up the dark's about 50% .
about a 10 second adjustment while I decided what I wanted
The Panorama was made in Irfanview Quickly .. Then it was resized to 800 pixels wide.
I'm not sure if any of the freeware editors can do this lighting adjust.
After >> Before