This article explains how to insert a 2D or 3D image into Paint 3D and paint over it using the brushes and related options available from the Brushes tab.
How to import more 3D models to Paint 3D?
You can insert 2D and 3D images into Paint 3D. This is useful, for example, if you want to convert a 2D drawing to 3D.
Select Menu at the top left of Paint 3D.
Select the file you want to import into the canvas you currently have open.
