PDF Standard

PDF/X-4 entry missing or incorrect

XMP does not have a RenditionClass entry in the XMP Media Management Schema

XMP does not have “title” entry in the Dublin Core Schema

XMP does not have a VersionID entry in the XMP Media Management Schema

PDF/X entry in Document info present (must only be present in XMP metadata)

PDF/X version key missing

Trapped key not present in XMP metadata