Ghent Output Suite 3 from the Ghent Workgroup will test whether design and production PDFs will be processed as expected in real-world production environments.
The new version adds testing for white overprint, rendering intent, ICC-based overprint and source profile consideration. The Ghent Workgroup has also made adjustments to all of the test files and documentation to make them clearer and easier to understand.
The suite is now available at http://gwg.org/ghentoutputsuite.phtml