Rasterbator
The Rasterbator creates huge, rasterized images from any picture. Upload an image, print the resulting multi-page half-toned pdf file and assemble the pages into extremely cool looking poster up to 20 meters in size. The Rasterbator is very easy to use. You can either upload a file from your computer or use any file that is publicly available in the Internet. After you have cropped the image and selected a desired size, the rasterbated image will be sent to you as an easily printable pdf file. The Rasterbator requires that you have Adobe Flash Player 7 & Adobe Reader (or other pdf viewer).
