It rather depends on what you mean by 'without changing any of the content'?
An A4 document will not fit on an A6 page without either scaling (from the
print dialog) or by changing the page setup, which will cause the text to
flow to more than one page. Neither can be described as 'without changing
the content'.
--
<>>< ><<> ><<> <>>< ><<> <>>< <>><<>
Graham Mayor - Word MVP
My web site
www.gmayor.com
<>>< ><<> ><<> <>>< ><<> <>>< <>><<>