Using a Drawing Control to Capture Signature on PDF Document?

I have looked through several old posts on this topic and I suspect that this may not be possible but I thought I would ask again to see if anything has changed.

The business wants us to create an eForm that has the ability to capture a signature using the Drawing control.  They then want to create a PDF document at the end of the process that has the signature on it.  Initial testing shows that the drawing control data is stored as base64 data:<br><br>data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAATIAAACZCAYAAACsarZcAAAeLklEQVR4Xu3dBbR1XVUG4Indiq3YiYHYYrciJgp2YAc2YmKCiZiIhV0oKqgoNjZiYIvY3WJ3jgfXHGzOf26c3vvcd43xjfv933/uPmu9a+53zV63qowgEASCwMIRuNXC55/pB4EgEAQqRBYhCAJBYPEIhMgWv4VZQBAIAiGyyEAQCAKLRyBEtvgtzAKCQBAIkUUGgkAQWDwCIbLFb2EWEASCQIgsMhAEgsDiEQiRLX4Ls4AgEARCZJGBIBAEFo9AiGzxW5gFBIEgECKLDASBILB4BEJki9

Is there any way to get this data into a Word template document with Merge Fields so that when we create a PDF from that Word template, the signature is shown on the PDF?

One older post from 4 years ago:

https://helpdesk.agilepoint.com/hc/en-us/community/posts/360033042614-How-to-add-signature-draw-image-in-word-template-and-create-word-doc-not-docusign-

mentioned that Word Merge Fields can do images, but the image has to be saved in a file path.  So maybe it would be possible to take the raw base64 data and save it as an image in a file somewhere?  And then use that saved file to populate the Word image field?