This guide will show you how to add, change, setup or install an email signature in Gmail
Once you are ready to set up your email signature, log into your Gmail account using a web browser. At the top right, click the settings icon. Select Settings.
Scroll down to the Signature section and paste your new or updated signature in the text box.
At the bottom of the page, click Save Changes. Click to compose a new email and see your new signature in action!