Go to the page and make sure you are logged in with the right account to have admin rights. Now, click on “edit page content” in your admin dashboard. Here you can upload new logo and header images or crop the existing ones.
- Logos should be at least 150 x 150 pixels.
- Header images should be 1280 x 300px and ideally don’t exceed 150 KB in file size, to make sure visitors with less bandwidth can see them too.