@Nada-86 if that is a doctype chose attach_image as type then scroll down to form settings and select the same field as image field . this way the image will appear the same the doctype user does .
@Nada-86 continues with the saving and the image will appear on the top left side . like this . (you can also hide the image field as you can update it by clicking on the image itself)
this is the best thing you can do