Using this free PowerPoint add-in, you can save time creating image effects and animations without effort. It includes more than 20 built-in features in the menu, not only for image edition but also for creating audio narrations, animations with motion paths, spotlights and highlighted text among others.
I found it particularly useful the options to cut out an image, and to stand out an element of the image, like a magnifying glass, or to blur the background. The auto-animate option creates motion paths between shapes, which don’t work well when the slide is imported into Storyline.
If you use PowerPoint I recommend you to check it out this free add-in. Below, some of the slides I created using this tool: