Corel Paint Shop Pro

PaintShop Pro (PSP) is a raster and vector graphics editor for Microsoft Windows. It was originally published by  Jasc Software. In October 2004, Corel purchased Jasc Software and the distribution rights to Paint Shop Pro. PSP functionality can be extended by Photoshop-compatible plugins. The X-numbered editions have been sold in two versions: PaintShop Pro, which is the basic editing program, and PaintShop Pro Ultimate, which bundles in other standalone programs. The particular bundled programs have varied with each numbered version and have not been sold by Corel as separate products.