This article will show you how to add a Signature Image to your profile.
Important Note
Your signature image must be:
File Type: PNG, GIF, JPG, BMP, or TIF
Size: 80 pixels by 180 pixels (height by width)
Instructions
Sign in to the system if you have not already
Navigate to the User Menu, then select the Preferences option:

Ensure you are viewing the Details/Password tab:

Click the Upload Image button under the "My Signature" image header:

Select and Open the Signature Image File from your computer's File Explorer:

Click the Save Changes button:

Click the Ok button on the Successfully Saved! pop-up that appears:

Your signature email has been updated