This printing dpi number is also the scan resolution if printing at 100% or original size, but enlargement of 1.5x needs scanning at 1.5x printing dpi.įor photos on photo-quality inkjet printers on Photo paperĢ40 to 360 dpi for color or grayscale, at printer's better quality setting.ģ00 dpi sometimes may be a little better than 240 dpi, but the difference is often hard to see.įor documents on inkjet good coated paper Meaning if you need 4x5 inches at 300 dpi, then you need a 1200x1500 pixel image (a bit more or less dpi works OK too, just scale to print size). Useful printing resolutions are shown below for common printing destinations, resolution at the scaled printing size on paper. ![]() Here are some essential details of digital basics.Ĭropping Aspect Ratio to fit the paper size is an important concern too.Īnd there is a larger dpi calculator that knows about scanning, printing, and enlargement. The pixel dimensions do NOT need to be exact, but printing photos somewhere near this size ballpark (of 250 to 300 pixels per inch) is a very good thing. This simple little calculation will show the image size needed for sufficient pixels for optimum photo printing. This is not difficult, but it is essential to know and keep track of. ![]() ![]() More pixels really cannot help the printer, but much fewer pixels is detrimental to image quality. Line art mode (black lines or text on white paper, NOT color mode) can use double that. Sufficient pixels to print at 240 to 300 dpi is optimum to print photo images (speaking of photo images).
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