I was using a modified copy of the "General" setup already.
Disabling the second "Font Embedding" setting was a major improvement. Thanks.
Now I've got (probably not new, but previously so minor I didn't notice) what is probably a show stopper for this document. The original is (almost positive) using some ligatures and the new Save As document has replaced them with spaces. The ligature problems I've seen are "fi", "fl", "ff".
Also, lower case "a" converts differently depending (I believe) on the font used. As in your comments above, you have italicized one sentence from my previous post. The italic "a" appears differently than the non-italicized "a" in my post. In and of itself, that isn't overly surprising, but in the original document fonts, as far as I can see, all the non-italicized "a"s are rendered like the non-italicized "a"s here. But in the newly saved document from PDF Fusion, some (I think font dependent) are rendered more like the italicized "a"s used your italicized text above, but not slanted.
I suspect that both of these problems (ligatures and "a"s) are somehow a result of font substitution for fonts I don't have. This seems inconsistent, though, with the fact that when I view the original document in Adobe Reader or in PDF Fusion, the rendering is (I assume) correct. I suspect that this supposed inconsistency is some PDF specification (and PDF Fusion implementation of the specification) I don't understand. I've never created PDF document directly so I know almost nothing about how it does what it does.
A third problem I see is that in a few places in the Save As document, spaces appear to have been replaced by a rectangle with a diagonal cross through it, which I take to mean that whatever (character) is there in the original cannot be correctly converted. Perhaps the designer of the original document somehow specified a specific length for the spaces in those places in the document to ensure the layout was as desired.
Thanks again for your earlier assistance.