PNG

Portable Network Graphics (PNG  /ˈpɪŋ/) is a bitmapped image format that employs lossless data compression. PNG was created to improve upon and replace GIF (Graphics Interchange Format) as an image-file format not requiring a patent license. The initialism PNG can also be interpreted as a recursive initialism for "PNG's Not GIF". PNG supports palette-based images (with palettes of 24-bit RGB or 32-bit RGBA colors), grayscale images (with or without alpha channel), and full-color non-palette-based RGB[A] images (with or without alpha channel). PNG was designed for transferring images on the Internet, not for professional-quality print graphics, and therefore does not support non-RGB color spaces such as CMYK. PNG files nearly always use file extension PNG or png and are assigned MIME media type image/png; it was approved for this use by the Internet Engineering Steering Group on October 14, 1996. PNG was published as an ISO/IEC standard in 2004. The motivation for creating the PNG...