PNG Format

PNG is the image format and the file extension which is known as Portable Network Graphics, and it uses a compression model which is called lossless compression. It is widely accepted that PNG is developed as a replacement of the GIF image format and to provide improvements to GIF format, that’s why it is developed patent-free. However, while GIF images support animations, PNG images do not because of the multiple images it contains. PNG images are mostly used to store graphics on the internet, and additively in macOS operating system, screenshots are automatically saved as PNG format.