The Certified PDF Status is determined by different aspects. As soon as one aspect has a "not OK" status, the overall Certified PDF status will be not OK as well (red). If all aspects have an "OK" status or an "undetermined" status (for example if no Original Documents are defined), the Certified PDF status will be "OK"
Preflight: Checking the document based on a Preflight Profile. See Certified PDF Preflight
Original Documents: a reference to the original documents, to monitor any changes made to the originals. See Verifying the original source document
Certified Preflight Profile Comparison: The Profile Compare Configuration allows to set a number of Preflight Profiles that are allowed. The Certified Preflight Profile Comparison allows to check if the Preflight Profile used for the Certified PDF document matches a Preflight Profile from this list. See Certified Preflight Profile Comparison