Historical
ANSI/CGATS/ISO 15930-7-2008
Graphic technology - Prepress digital data exchange using PDF - Part 7: Complete exchange of printing data (PDF/X-4) and partial exchange of printing data with external profile reference (PDF/X-4p) using PDF 1.6
This part of ISO 15930 specifies the use of the Portable Document Format (PDF) Version 1.6 for the dissemination of digital data intended for print reproduction. PDF/X-4 files contain all elements necessary for final print reproduction; PDF/X-4p files provide for unambiguous identification of an externally supplied ICC profile for the characterized printing condition for which they are prepared.
Content Provider
Association for the Suppliers of Printing, Publishing & Converting Technologies [npes]