Click the Fill & Sign button on the right hand side. It will bring up this bar at the top of the screen.
Click Add Signature.
Type your name and click Apply. It will bring you back to the contract.
Instead of your mouse pointer, you will see your signature sliding around the page. Position it on the signature line and click.
At the top left corner of the screen click File. Click Send File. Click Attach to Email.
Select Default email application or webmail. Check Remember my choice. Click Continue.
It will then open a new email screen with the signed contract attached. Enter the email address in the To… box and send!