![]() ![]() This means that after the image is saved in a file, when it is rendered back all the pixels are rendered exactly as you designed them without losing any detail. On the other hand the PNG format, by design, supports Lossless Compression. They even allow you to specify how accurate the result should be: the less accurate the result needs to be, the smaller the file is. Since there is no expectation of accuracy, the Lossy Compressed images have the luxury of storing little information about the original design, resulting in small files. When a Lossy Compressed image is saved and then rendered back, the image is not 100% exactly as you designed it but just "close" to it, sort of a sketch. ![]() Some image formats, such as JPG, support Lossy Compression.
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