find an online image cropping tool. I used <https://imageresizer.com/crop-image> because it's free.
2
Upload your campaign logo which should already have a transparent background from the [previous step](https://scribehow.com/shared/Removing_the_background_from_your_campaign_logo__dMrzly2fQo6fEdsuurDqKg).
3
Resize the image canvas by dragging the points on the grid until they perfectly fit around your logo.
4
When happy click 'Crop' and your resized image will automatically download.
5
Hopefully, you now have a campaign logo with a transparent background, cropped perfectly to the size of the logo. The final stage is to recolour it to white to fit the theme.