The free version of Toolbox has an option to either Delete All or Delete Unused colors from either a file or book.
You can also do the same with paragraph & character formats, user-defined variables, x-ref formats, and table formats. http://www.systec-gmbh.com/en/sites/toolbox.php The paid version includes many, many more useful features, and either version is highly recommended. -Carla - CONFIDENTIAL- This email and any files transmitted with it are confidential, and may also be legally privileged. If you are not the intended recipient, you may not review, use, copy, or distribute this message. If you receive this email in error, please notify the sender immediately by reply email and then delete this email.