Quote:
Originally Posted by CyberSEO
Course not. PNG is a lossless format which uses deflate compression. So the only way to reduce its size is to reduce the number of colors (alter the original image).
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you are mistaken, there are number of tools that optimize the deflate algorithm to generate smaller size 100% losslessly, for example:
https://en.wikipedia.org/wiki/Pngcrush
https://en.wikipedia.org/wiki/AdvanceCOMP