Follow the steps below to remove the white background from a signature in CardExchange.
Open CardExchange Software and go to the Configuration tab.
Click Card Designer.
In Card Designer, right-click the Signature object and open the Properties window.
Go to the Visibility tab and check the Remove Background checkbox.
Copy or enter the appropriate Tolerance value to remove the white background from the signature.
Check the signature on the card template to make sure the white background has been removed properly.