Download the Outlook plugin by clicking on the button below
Drag and drop Signitic.app in the Applications folder.
Connect via Google, Office 365 or with your secret key.
Update your signature by clicking on the Update button on the bottom of your profile page.
Your signature will now appear into your current signatures. You can also choose your default signature to be your new Signitic signature.
If the signature is not updated and/or the loading is running in a vacuum, open "System Preferences" on your Mac, click on the "Security and Privacy" icon and check that in "Automation" the boxes related to Signitic are checked.