Thank you for your reply and the information.
I converted the docx to ebub then opened edit book. There I found an individual html file that contained the image in question and no other text.
I added style and svg markup as I got from researching examples.
The result looked the same so I converted the jpp image to svg and swapped out the jpg file in images folder with the svg version. Still no change in appearance when viewing the updated epub file - the image still did not go the edge of the page but seemed constrained by the normal margins.
I converted that updated epub to pdf - same result (which is as it should be I guess)
Below is the html for the image epub file. Trying to get the image to go the edge (or very near the edge, i.e., maximum size viewable/printable) of page. Any and all help greatly appreciated. Sorry to have to ask, but if possible, please be specifics as I am too new to all this to easily understand & follow generalized direction. Thank you!!
For reference, here is the epub code:
<?xml version='1.0' encoding='utf-8'?>
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<title>Unknown</title>
<style type="text/css">
body { margin:0; padding:0; overflow:hidden }
svg {viewBox="-10 -10 2250 3000"; position:fixed;
top:0; bottom:0; left:0; right:0 }
</style>
</head>
<body>
<p><img src="images/Character_%26_Calling_-_portrait_4.svg" alt="Image"/>
</p>
</body></html>