The abbreviation PNG as we know it stands for Portable Network Graphics. A PNG file is a raster graphics file. It was mainly created to be used as a more advanced and improved version of the Graphics Interchange Format aka GIF. PNG files are unique and mostly known for its "Non losing Imagery" attitude. Because it can be compressed into a very small file like none other, it makes it makes it easier to carry around.
PNG files are mostly used for small images and icons.
Gotta Flashdrive? Convert JPEG files to PNG files to reduce size of image file although, the quality of the image may reduce due to low pixels