I have taken 3 photos of the same subject jumping. But, unfortunately, I moved a little while doing this. Is it possible to crop my 3 pictures so the background won't seem to move? I can use lightroom and photoshop but I don't know how to do so.
A simple way to do this is stacking the 3 images as layers, and then setting some transparency to them, so you can move them a bit.
I would use the keyboard to move them one pixel at a time and using a zoom of 100 or 200%.
There is a feature that could help: Edit > Auto-align layers
Always work on a copy of the files.