What is a PNG File

Category:Digital Signage Concepts ->  Media Type

What is PNG digital Signage
Portable Network Graphics (PNG) is a bit map 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.

PNG supports palette-based (palettes of 24-bit RGB colors), grayscale and RGB images. PNG was designed for transferring images on the Internet, not professional graphics, and so does not support other color
spaces, such as CMYK. 

PNG files nearly always use file-extension “PNG” or “png” and are assigned MIME media type “image/png” (approved October 14, 1996).