GAMGI uses the file extension to automatically determine the file format. To export a standard .png file of the whole graphic area of a GAMGI window, just give the filename the extension .png.

The command line application pnmtopng, widely available and usually installed by default in most Linux distributions, must be installed, otherwise GAMGI will be unable to export a .png file.

This is a modern, excellent format and is highly recommended, due to its low-size and lossless compression, together with color and transparency capabilities. Currently the compression level is set to 6 (the pnmtopng default).