Legacy ImageMagick Discussions Archive

I've got a convert command that works:

convert -flatten -type Grayscale input.xcf output.png

Now I want to batch convert a lot of xcf's so trying to use mogrify but can't get it to work.

mogrify -flatten -type Grayscale -format png -verbose *.xcf

Results in
"mogrify: unrecognized option `-flatten'."

So how can I flatten layers with mogrify?

The command works for me, on IM 6.6.0-8 on Windows 7.

What version IM are you on? If old, an upgrade might do the trick.

mogrify xcf to png