Metadata is descriptive text included with a digital image file.
Currently, most images on the Internet have little or no descriptive metadata
There are several ways to reveal metadata embedded in an image file.
1. In Windows, right click the file and choose "Properties" choose "Properties" from the File menu in Windows Photo Viewer
2. In Mac OS, right click the file and choose, "Get Info," or choose "Inspector" from the Tools menu in Preview
3. Most image programs will display metadata, usually under "Properties" or "Get Info."
This is the Windows image properties display:
Scrolling down the "Details" tab reveals descriptions of the image.