PNG is an image file storage system, which is a raster graphics file format.
PNG stands for Portable Network Graphics.
The format can be losslessly compressed, and was first created as a non-patented replacement for GIF.
UPDATE 2 – its time for the 2019 update on this one… If you’re looking to find out the Twitter banner size, or something similar, in order to understand the exact dimensions of the image at the top of your Twitter profile (the header image), then the details below will get you there! Twitter Header …
If you want to convert PNG (or similar) files containing, for example, icons which are in one colour (say green) to black, then the command below will do this. This can be especially useful for updating logos or icons on the fly in a file system, without breaking stride, over command line (SSH). Note you …
