As of the time of this article, Gmail still does not allow you to use images in your signatures – which is really for security reasons as placing HTML codes in signatures can lead to abuse and the transmission of viruses. So for the time being, Gmail will only allow you to use plain text as your newsletter gmail– which many people use right now.
There is however, a manual way to add an image to your existing text signature in Gmail, or even as the header of your email (does not require the use of scripts or Firefox).
1) First create your image and upload it to any free image hosting service, such as Photobucket.
2) When your image is uploaded, simply copy the entire image itself as you see it on the page.
3) Create a new message in Gmail and paste in the image anywhere you want. Make sure the image is loading properly.
4) Type in a subject line such as “Email Sig” or anything else that will identify the contents of the email.
5) Click “Save Now”, which saves the message as a “Draft”.
Now, anytime you want to send out an email with your special image, all you have to do is first open up the draft message, copy the image and then paste it anywhere in your new message.
There may be other ways to accomplish this in Gmail, but the above method works and does not take very long to set up.
Now go ahead and spice up those Gmails!