Digital Signatures
Within the form details next to the Publisher box there is a
button that will bring up the Digitally Signed Form screen.

Simply click the "Load Signature" button to browse for your FDS (Form Digital Signature) file. If you distribute your form to the public having a digital signature will give your users peace of mind knowing they are running a form from a trusted publisher. While signing a form is not required it is recommended.
Learn more about why and how to get a digital signature.