If you take photos with your digital camera or use scanner, some photos need to be rotated. ImageFlip can help you perfectly flip your image either you want to flip it horizontally or vertically. You can save a lot of time and pc memory while performing this image manipulation.
ImageFlip has a very user-friendly interface that lets you view your images as thumbnails, rotate and flip them.

The license of this software is Freeware, you can free download and free use this image processing software.