Crop out a circle for a transparent background
Hi,
I have an issue. I am trying to make the big, white circle transparent and keep the small one as it is (the white one is below the blue one). When I export the image and save it as a PNG, the background becomes transparent but the circle is still there. Obviously, I need to crop it or something, but don't know how. Anyone that can help me with this? Maybe explain how I can do it with any geometry, because I will need it.

Here we have the circle
And when I save it I get the following
Thanks!