Rorohiko have released a plugin for InDesign to convert colour images to greyscale at print time: Rorohiko Color2Gray. Looks like it implements this InDesign technique, but in a much easier way.
Rorohiko have released a plugin for InDesign to convert colour images to greyscale at print time: Rorohiko Color2Gray. Looks like it implements this InDesign technique, but in a much easier way.