A huge list of makes and models of lasers feature specific settings for each. Standard image types can be opened by PhotoGrav 3.1 including tif, jpg, png and bmp formats. Now, Color or B&W images can be processed by PhotoGrav. It has never been easier to achieve professional photo engraving results. PhotoGrav 3.1 is a major upgrade on the software that has become the industry standard for processing photos for laser engraving.