I created this email template today for internal use to send to company employees. It just gives a brief outline of some highlights and has a button to download the full newsletter in PDF format.
You can see how it looks on Codepen. This will present much better than what is currently being done, which is to take screenshot of the PDF and embed it into the email.
Changing the text from being embedded in images to rendering as pure text helps to be able to read since depending on how the image of text is saved, can make words fuzzy and look unprofessional.