Tagging or untagging an image with an ICC profile

Proceed as follows:

Under Tools, open the PitStop Color panel.
Remember that in Acrobat DC, you have to add the Enfocus PitStop Panels yourself. Refer to Adding PitStop Pro panels to the Tools pane in Acrobat DC.
Click the Image Matching button.

You see a list of all the images in your PDF document, displaying their color space and color profile, if any. You can click an image in the list to see and select the image.
Select an ICC Profile to tag the image with.
If necessary, select the option to apply this change to all images of the same color space with the same profile.