In Pictures: How to Clean and Retouch Old Photos w...
14. You can now use the <i>Deform</i> tool on the tools palette to rotate and stretch the mouth as will best fit. Use the eraser to delete the unwanted areas around the mouth. When saving unfinished work save your project as a Paint Shop Pro Image. This will preserve the layers. When you’ve finished save as a JPEG.
In Pictures: How to Clean and Retouch Old Photos with Paint Shop Pro