Resizing, customizing, and even rotation of any shape can be done easily in Word 2010. But what if you need to rotate images over by specific rotation levels? There is an option for this which is not that much apparent.
To rotate the image, select the image and navigate to Picture Tools Format tab, and under Arrange group, from Rotate options, click the desired rotation option.
You can also quickly Flip the image in vertical or horizontal direction. While customizing the image rotation, many other options can also be accessed from here.