You may need to identify the image format in a Rich Text Format file to help update your business communications. Common image files include raster graphics such as Graphics Interchange Format (GIF), ...

There's a lot to learn about image files on the command line, from verifying file format to finding out where and when photos were taken and maybe even getting an unusual view of what they look like.

An outline of the most important file formats for digital photographers and how best to use them. An outline of the most important file formats for digital photographers and how best to use them. When ...