How to upload an image so it sits in the footer, not as the background?

I have a png file from my insurance provider that I can add to my website, to show I have insurance. I can't work out how to upload this so it sits in the footer to one side. All the image upload options seem to either make the image a background or insert it as a new section. I just need it to sit 'on top' of the content in a corner.

Thanks

You can add an Image Block > Upload image