Ideas on how to clean up for print?

Discussion created by slivingston on Apr 2, 2014
Trying to print my mapbook for my firehouse and using export function to PDF, at 700 dpi with a 1:1 ratio but still comes out rather pix elated. I know the layer that is looking pixelated is a "raster layer" (don't know exactly what that means). Any guidance would be appreciated.