Looks like my problem is different. When I do: convert fig1.jpg -colorspace LAB fig2.jpg fig2.jpg is still RGB (as output of identify -verbose says). m. -- LaTeX + Vim = http://vim-latex.sourceforge.net/ Vim Universal Templates: http://vim.sf.net/script.php?script_id=1078 vim.pl - http://skawina.eu.org/mikolaj CLEWN - http://clewn.sf.net