system toolbox » ubuntu

graysscale png

hernad@desk-hernad:~/gs$ gs -dSAFER -dBATCH -sDEVICE=pnggray -dFirstPage=2 -dLastPage=2 -sOutputFile=test.png test.pdf

paket je gs-gpl

uputstvo na lokalnom disku je

file:///usr/share/doc/gs-gpl/Readme.htm

evo rješenja za color -> grayscale

hernad@desk-hernad:~/gs$ gs -dBATCH -dNOPAUSE -sDEVICE=psgray -sOutputFile=gray.ps test.pdf
ESP Ghostscript 815.02 (2006-04-19)
Copyright (C) 2004 artofcode LLC, Benicia, CA.  All rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Processing pages 1 through 72.
Page 1
Page 2
...

hernad@desk-hernad:~/gs$ ps2pdf gray.ps gray.pdf

hernad@desk-hernad:~/gs$ evince gray.pdf

super, napokon ne moram trošiti bez potrebe color toner :)