I'm pretty inexperienced when it comes to photo editing so I suspect this is simple, but it's got me stumped.
Goal: I want to use a circular portion of an image on a Visio diagram, overlaying it on another image such that only the circular image covers the background image.
What I've tried: I opened the existing rectangular image, selected the circular part I want to use, cropped and saved the image. However, it appears that Paint.Net is adding a white rectangular background when it saves the image. When I paste the edited image on top of another image the added white background covers the background image.
How do I end up saving just the circular image without the white background?
TIA
