Log into your SenditCertified account and on the side menu click on the “Options” option and then select “Account Settings”.
On the "Account Settings" page click the "Site Settings" tab.
At the bottom of the "Site Settings" tab page you will see an area to enter a Secure Package Signature. After you are done entering your Signature just click “Save Changes” and your Signature is ready to use.
Now at the bottom of your Secure Packages your Signature will be there.
Please click below link to download