Desaturate Images in Indesign?

[Matt Townley]

I’m not sure if there is an official desaturate effect native in ID, but a quick way to create the same visual look would be to create a new object over your image, set the fill color to white and set the transparency blend to color.

This may not work in every situation depending on what you have going on with other assets, but this would do the trick.

Also, the color data will still be there, so keep this in mind depending on your printing scenario.