Portable Network Graphics
family of lossless compression bitmap image file formats From Wikipedia, the free encyclopedia
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Portable Network Graphics (often shortened to PNG) is a bitmapped image format that uses lossless data compression.
Their most common use is within transparent images, as it does support an alpha channel along with a 16-bit color channel.[1][2]
It is commonly used on the internet due to its high quality to size ratio.
References
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