Also of note, once you get pcb built, run "pcb -h" to get a list of command line options. The double-dash options correspond to X and Gtk resources. Example:
Command line: pcb --grid-color '#ff0000' .Xdefaults (lesstif): pcb.grid-color: #ff0000 $HOME/.pcb/preferences (gtk): grid-color = #ff0000 You can also print and export right from the command line. We use this to generate the documentation; the "master" for illustrations are .pcb files! We invoke pcb from the Makefile to build png (for html), eps (for dvi), and pdf (for pdf) formats for each board for inclusion in the documentation.