Download the Signitic application on your computer.
Run the downloaded file. The installation will start instantly.
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.
You can close the Signitic application via the red cross in the top right corner.
The application will then run in the background to update your signature without disturbing you.