Step 1: Edit your Form
Go to Sites - Forms
Click on the form you want to edit or create a new form
Click on Styles and upload the image in the background image field
To see the background image, click on Preview
Save when everything is complete
Go to Sites - Forms
Click on the form you want to edit or create a new form
Click on Styles and upload the image in the background image field
To see the background image, click on Preview
Save when everything is complete