Rasterbator - Wall art from any image
Easy Poster Printer - Ever wanted to create your own poster?
Posterizer - The rasterbator allows you to create posters larger than a standard page, using the tiled printing method. It will rasterize any image and output files that can be printed at home and reassemble to the original image.
Splashroad Separation Studio - Quick and Easy Color/Shape Separation
Posteriza - Use POSTERIZA to design your own big posters and signs from any digital photo with your home...
poster - Unofficial client for Instagram mobile experience on Mac.