Details on creating and editing a droplet can be found in the Océ whitepaper "How to Avoid Wide Format PDF Print Problems" at www.oceusa.com/PDFprinting.
Acrobat software also helps users indentify problem areas by previewing transparent objects in a PDF and highlighting them in red. Since the PDF/X standard does not support transparency, the flattening is done when the PDF/X file is created. The result is that a PDF/X file generally processes more quickly than PDF files that contain transparency.
PDF files include many different variables, any of which can have a negative impact on printing. Unfortunately, these problems are not always addressed before documents arrive at the print firm or printer. With a solid understanding of the PDF Preflight and PDF/X file format, users can help avoid problems in processing or printing content. The earlier issues are detected, the easier it is to fix them before they become costly printing errors.
Download a copy of this Whitepaper here: http://www.myprintresource.com/whitepaper/10285095/how-to-avoid-wide-format-pdf-printing-problems