This is the minimum resolution for newspapers or posters viewed from a fairly short distance.Ī digital camera with decent image quality and a resolution of 12 megapixels or more can be used to print high-quality A3 size pictures. At 150 ppi the image needs to be 1754 x 2480 pixels.For photo books, it is also the optimum resolution but a somewhat lower pixel count (250 dpi) is acceptable for great-looking photographs. This is the required resolution for quality offset printing that will be viewed from a short distance (such as books, brochures, magazines, calendars,…). ![]() At 300 ppi (pixels per inch) the image needs to be 3508 x 4961 pixels.The number of pixels depend on the required output quality. To output an image properly it needs to have a certain minimum resolution. Resolution needed to print an A3 size picture The dimensions always get rounded to the nearest millimeter. The height/width ratio remains constant for all sizes: 1:1.41 or the square root of 2. ![]() ![]() ![]() This way a range of paper sizes is created from A0 (which has a surface of one square meter) to A10. Two A3 pages next to each other in a spread equals the A2 paper size. By folding an A3 in two along its shortest side, you create a DIN A4 document.
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