The Eco certificates setting hides or shows background images on certificates. Hiding images uses less ink, saving printing time and costs. By default, images are hidden. This is a global setting that applies to all courses, and it's one of the certificate settings.
Step-by-step instructions
Go to Settings.
In the GENERAL section, click Global settings.
In the CERTIFICATES & TESTS section find Eco Certificate and choose to hide or show:
To hide images on certificates, select the check box.
To show images on certificates, clear the check box.
Click Save changes.