Thanks Lucas,
That's correct, I have notified client that Spam Check Rate will increase using all the content as image but he still is looking at us to confirm if it's possible or not.
I will certainly give your solution a try, I hope it works. I am also trying to see if SVG is supported in ACS and how it's rendered after deployment. Since, it's a HTML Based vector graphic and the HTML is on their .Com it should solve the problem.
I will keep the group posted if it works. Thanks for all the amazing help and support.
Sid