Perhaps you have just found the perfect image to use in a presentation! You put it in and realize that there's that dreadful white box around the image. What to do?!
Well, with the help of the free website Pixlr (https://pixlr.com/editor/), here's how I handle that: goo.gl/67SHHz.
Since this post was written, there is a much quicker way to do this by using the website https://www.remove.bg. Just upload your pic and it does the work! Yay!