what is dpi in printing
{"Image DocumentName": "Common DPI and LPI for Laser Printers", "Image ImageDescription": "300 dpi 60 lpi (5 pixels2 per halftone dot) 600 dpi 85 lpi (~7 pixels2 per halftone dot) 1200 dpi 110 lpi (~11 pixels2 per halftone dot)", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}