Change a color picture to black and white

  1. Select the picture you want to work with, and then on the Formatting toolbar, click Edit Pictures.
  2. In the Edit Pictures task pane, under Edit using these tools, click Color.
  3. Under Hue and saturation settings, type -100  in the Saturation settings text box or move the slider all the way to the left.

 Note   To undo an edit, click the Undo command on the Edit menu. Edits to pictures are not saved until you save them.