Gmail Rich text signatures
Rich text signatures have long been one of the most requested features in Gmail and Google Apps. Not being able to change the colors or font size of your signature, or insert images and links has been an issue for some until now.
You will be happy to know that today Google has launched the ability to write your own rich text signatures right in Gmail and Google Apps.
The next time you log in and visit the Settings page, you'll see a rich text editor in the signature section. Here, you can customize your signature by adding pretty formatting, links, and images - or decide to leave things nice and simple.
Gmail also now supports a unique signature for each email address associated with your account. So, if you send mail using a custom "From:" address, you can use a different signature for that address. From the Settings page, you can edit the signature for each account by changing the email address that appears in the dropdown menu.
Currently, only the latest desktop version of Gmail supports rich text signatures and multiple signatures. The older version and HTML version of Gmail, along with the mobile versions, use a plain text version of your primary account’s signature.