An improved paint pad assembly is provided with a painting surface contour that is changeable from concave to flat to convex so that the paint pad can paint exterior corners, flat surfaces and interior corners with equal ease. The one-piece paint pad features handpieces disposed on the opposing edges of the paint pad. The two-piece embodiment features an inverted U-shaped handle mounted to the opposing side edges of the paint pad via a tab and lock configuration. The paint pad is hinged in the longitudinal direction thereby enabling the pad surface to extend outwardly for painting an interior corner and inwardly for painting an exterior corner with equal ease.