I stumbled on a quick way to modify newborn patterns in PDF format to fit 2.5 to 4.5 pound babies. View the pattern at 75% size in PDF viewer. Take a screen shot (Hold down ALT key and and press the PrtScrn key for Windows systems). Open any imaging software program and paste the screen shot and then print from the photo imagining program. The result is a scaled-down for a small preemie pattern.