Thanks for reaching out to us! To achieve this:
1. Create a Blank Canvas from the Start tab and tick Transparent
2. Drag on your logo from the Photo Basket at the bottom of the editor
3. Click your logo and a Photo Properties dialog will appear with an Eraser tool icon on it
4. It’s necessary to paint (drag over with the mouse button down) the white area to erase it. In the future we will have a “paint bucket” tool to select all the white area automatically.
Let us know if you have any questions!
Regards – The Ribbet Team