Image shadows are important in editing because they make pictures look real and three-dimensional. You can adjust shadows to change how strong they are, which way they fall, and how soft or sharp they look. This helps make things in photos look more natural and grounded. For example, if you take a picture of a product, adding a shadow underneath it can make it seem like it's sitting on a surface instead of floating. In simple terms, playing with shadows in editing lets you make pictures look better and more believable by giving them depth and realism.