![]() ![]() Armed with this knowledge, everything else is simple math. While this free tool you can select the image on your computer, tablet, or phone and the calculator will figure out the sizes that match your image best. A still-acceptable quality requires that the print resolution should be no less than 150 DPI. PosterBurner's image aspect ratio calculator is a tool that takes your image and finds the best matching print sizes for your image. Photographic quality (at an arm's length viewing distance) requires that the print resolution should be no less than 300 DPI (dots per inch), which can also be written as 300 PPI (pixels per inch). The only special knowledge we needed to solve the problem was about quality, which was easily found on the web. I've created the handbook Standard photographic print sizes for defining standard photo print sizes, which can be edited to provide missed sizes. We want to choose the maximum photo print size that allows us to print the digital image without quality loss. The photo print size name defines the linear dimensions of a photo print – for example, 4''圆'' or 4R photo print size means that the photo print has 102x152 millimeters dimensions. We have a digital image with the known size in pixels, for example 3264 x 2448, and we also have a known set of standard photo print sizes used by photographic printing services. The first calculator recommends the photographic print size for given digital image dimensions in pixels. ![]() This article is about the relation between a digital image size in pixels and the photographic print size.
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