Registered MIME type: image/png PNG raster image format. Commonly used for graphics and photographic images on the web. PNG is an acronym for Portable Network Graphics. Binary format. Stores a single image. Stores color bitmaps at a resolution of 8 or 16 bits per channel. Grayscale images are represented at a depth of 1, 2, 4, 8, or 16 bits per pixel. Supports alpha channels for 8-bit and 16-bit RGB and grayscale images. Has support for color-reduction palettes using up to 256 8-bit RGB colors. Developed in 1995 as an open and patent-free alternative to the GIF format. Published as international standard ISO/IEC 15948:2003 and ISO/IEC 15948:2004.
Import and Export fully support Version 1.2 of the PNG format.