This is a discussion on Print HUGE posters with this within the Applications forums, part of the Software Zone category; Goto HowTo: Free and Huge custom poster for your wall » MakeUseOf.com for detailed info
I'm gonna print a Quake ...
it does a similar thing but instead of rasterizing the image, it just tries to expand the image file, then grid it up
looks pretty bad. just try to expand a 800x600 image to 8000x6000 and ull understand