Both Enfocus with PitStop Pro and callas with pdfToolbox will be showing enhancements to their intelligent preflight engines. If you are in prepress and visiting drupa, you should check out both applications to understand what can be done with intelligent prefight and metadata can help automate your workflows.
Dynamic preflight with pdfToolbox can be seen at hall 7A, stand D13
Smart preflight wiht PitStop can be seen at hall 7a, stand C20/C22

