can metatagger automatically insert metadata into a PDF?
but can it work the other way?
You mean, you put in EAs(Author/Description...) in ContentCenter and it updates the underlying asset(a pdf, an MS word doc ...), can be done through workflow with callouts to external programs which know how to manipulate such assets(pdf, doc...).
do you know any specific applications that play nicely with metatagger to populate the pdf metadata from TeamSite?