There is free (GPL) software for Win 2k, 2003 server, XP (and possibly
NT 4.0 also) that installs a virtual "poster printer" on your system.
You print to it like any printer, and it will capture the image of the
document pages (similar to a fax printer) and then pop up a "poster
utility" dialog that will allow you to enlarge the image from any page
of the document and print it to multiple pages.
You cut off the edges of some of the pages and put them together with
transparent tape (or some other method). The images from the separate
pages align nearly perfectly, the result is ALMOST professional
quality.
Please take a look:
--------------------------------
The "Directory" web site is
http://www.geocities.com/poster_printer
The main web site, with screen shots to really show you what it can do,
is
http://posterprinter.sourceforge.net/
The development web site (this is open source software) is
https://sourceforge.net/projects/posterprinter/
If you want to download it right away, the download page at
SourceForge is
https://sourceforge.net/project/showfiles.php?group_id=172256