How to Overlay Images in PowerPoint. Microsoft PowerPoint 2010 can be used to create complex presentations containing everything from text and images to videos, sounds and Flash animations.

PNGTree is one of the best websites for downloading PNG images with a transparent background. From simple icons to buildings, clouds, etc. – you can find almost everything on this website.

Try to make it at least 300 by 300 pixels; you can always shrink it to overlay onto smaller images. Select the option in the pop-up box that creates the image with a transparent background.