I am going to use a friends computer to print some ads and I need the pixels dimensions for this billboard: If anyone has this info please post it. Thanks!
Pixel size won't really help. DPI and printer scaling can affect your output. If you can work in one of the photo editing programs, you can resize and scale the image to any inch dimention you want. They don't care about pixels as they will interpolate the colors between the pixles to get the best resolution. If you have a printer that can print at 1200 dpi. and you don't scale the image, then a picture 1200 pixles wide would print 1" wide.