How To Annotate Images To Provide Direction
It's always easier to show rather than tell when it comes to discussing photos. If you have changes to photos that we've provided or you want to provide specific direction on a match image, this tool will help you.
How To Annotate An Image With OSX Mac Preview
How To Annotate An Image On Windows
We don't use Windows at POW and I personally haven't used it since the Windows Vista release in 2006, so I am not an authority on this. However, I've done some research for you and read that MS Paint may be a good option for annotating images and it comes installed standard on every machine. This is the best article I could find on the subject, but I haven't tested it.