How to add an Html signature to the email template without modyfing one by one

Good Evening Everyone.

How can i add an Html Signature to the email template witout modyfing all the single email templates one by one?

I want to add the name and a pic hosted on imageshack.

Thanks.

Hello,

You can change the structure of email templates here: templates/your_template/tpl/html_email_source.html (but you should use the type "html" in your email template).

Thanks! :) :)