Can browsers 4.0 and 4.5 view pdf files linked to a page?

I've designed a site with a printable map to help users to find us geographically. By clicking a link from the Contacts section, the Acrobat file displays in all platforms and browsers later than v4.7.

Is there a way I can allow v4.5 browsers to see the pdf file?
Thanks. The site is
www.junction11.com