Somec

Imagine a picture of a person standing in the sun. The shadow grows from their feet to their head and angles to the right of the person, due to the position of the person and angle of the sun. I want to keep the person and everything in the image untouched with the exctption of their shadow. I want to pull the shadow from the right to the left, as if the sun changed position in the sky and changed the direction of their shadow. Is this possible in PDN? Thank you in advance!