An old post asking the same question said there is no way to modify the HTML of the email template used to send invoices to customers. 

My issue: The image used for the company logo is about 25x the size we want it to be. The only way we know how to fix it is to modify the pixels used for the image in the HTML.

My question: Has intuit recently allowed us to modify the HTML for the email template? If so, can I get a documented guide on how to access it?