To make an image transparent in PowerPoint, you have to change the opacity of the image - and you can do it for the whole image or a part.

You can make a picture transparent in your PowerPoint slides so that you can add text over it or use it as a background.

Make images backgrounds transparent in PowerPoint to free up screen real estate.

After making the image a bit transparent, you’re ready to add the lines that create the collage effect. How to insert lines to create a collage effect in PowerPoint ...

We explain how to remove and change the background in PowerPoint. Background is a part of a picture, scene, or design that forms a setting for a picture.

How to Create a PowerPoint Template With a Subdued Picture. Presentation expert Garr Reynolds says "backgrounds should be simple without lots of perceptible differences among the background image ...