Below are the sample coding of HTML signature.
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<html>
<head>
</head>
<body>
<p style="text-align: left;"><span style="font-family: arial; font-size: 13px;">This is your signature sample!<br />
<br />
Best Regards,<br />
<br />
<br />
My Name<br />
----------------------<br />
Designation,<br />
Company Name<br />
Web:
<a href="http://www.companysite.com">http://www.companysite.com</a> <br />
Email:
<a href="mailto:username@companysite.com">username@companysite.com</a> <br />
<a href="http://www.exabytes.com"><span style="text-decoration: none;"><img alt="" style="border-style: solid; border-width: 0px;" id="_x0000_i1025" src="http://exabytes.com.my/images/logo.gif" /></span></a></span></p>
</body>
</html>
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Edit the coding with your preference and if you would like to attach the image together, please modify the image URL and it shall be previewed.