pnmtile - replicate a portable anymap into a specified size
pnmtile width height [pnmfile]
Reads a portable anymap as input. Replicates it until it is the specified size, and pro-
duces a portable anymap as output.
Copyright (C) 1989 by Jef Poskanzer.
13 May 1989 pnmtile(1)