This article refers to functionality in the standalone product Workfront Proof. For information on proofing inside Adobe Workfront, see Proofing.
If you are a developer with customers who could benefit from having integrated document review, collaboration, and approval, you can easily embed Workfront Proof into your application. The Workfront Proof API allows you to enable that functionality and save hundreds of man hours.
Please see the API help pages at http://api.proofhq.com/ for more information.