Thank you for your question! I'm happy to help.
If you have an image within a word document, you'll want to save the image to your computer. Then upload it to your Library with us.
You can either right-click (ctrl click on a MAC) and save as image or you can take a screenshot and save it as an image on your computer. Here's a great piece that we wrote on screenshots.
Once you've uploaded the image to your Library, you can then insert it into your email.
Hope that helps!