PosteRazor – Make Your Own Poster!
http://posterazor.sourceforge.net/

Want to print a poster? PosteRazor cuts an image file into pieces and you can print then on your printer and glue them together to a poster. Easy FLTK based user interface. Uses FreeImage for image loading. Creates PDFs as output. This has been added to the tools section of Research Resources Subject Tracer™ Information Blog.