cd /home/lanx/tmp; SOURCE="test.pdf"; ILTYPE="plane" ; GEOMETRY="1240x1754"; QUALITY=90; DENSITY="150x150"; for OUT in "jpg" "png"; do echo $OUT; DEST="$SOURCE.%02d.$OUT"; convert +adjoin -interlace $ILTYPE -geometry $GEOMETRY \ -density $DENSITY -quality $QUALITY $SOURCE $DEST done