PNG stands for “Portable Graphics Format”. It is the most frequently used uncompressed raster image format on the internet. This lossless data compression format was created to replace the Graphics Interchange Format (GIF). PNG file format is an open format with no copyright limitations. The Portable Network Graphic (PNG) file format is ideal for digital art (flat images, logos, icons, etc.), and uses 24-bit color as a foundation. The ability to use a transparency channel increases the versatility of this file type. Today PNG is one of the most popular raster formats on the Internet. In 1995 during Usenet conference it was suggested to develop this format as an alternative to the popular GIF format, that requires a license. Thus PNG emerged, which unofficially stands for “PNG IS NOT A GIF. A PNG file contains a single image in an extensible structure of chunks, encoding the basic pixels and other information such as textual comments and integrity...