Scale Down Oversized Graphics using ArborText Styler in XSL Print

How do I use Styler to force oversized graphics to fit within the width and/or height of a page? 

I cannot edit the graphic or have the authors/illustrators resize the graphic files.

I am using the XSL Print mode and understand that it is no longer supported.  

I cannot use the APP Print mode because I've already made custom XSL changes and do not have time to learn how to make custom changes with the APP. 

I am using ArborText Editor with Styler Release 7.1.

I have already tried the following XSL, but it has no effect:

<xsl:attribute name="width">8in</xsl:attribute>
<xsl:attribute name="content-width">scale-down-to-fit</xsl:attribute>
<xsl:attribute name="scaling">uniform</xsl:attribute>

I can force graphics to a particular size with the following, but it blows up small graphics:

<xsl:attribute name="width">8in</xsl:attribute>
<xsl:attribute name="content-width">scale-to-fit</xsl:attribute>
<xsl:attribute name="scaling">uniform</xsl:attribute>

Thanks,

-James