Graphic technology — Prepress digital data exchange using PDF — Part 4: Complete exchange of CMYK and spot colour printing data using PDF 1.4 (PDF/X-1a) (ISO 15930-4:2003)
ISO 15930-4:2003 specifies the use of the Portable Document Format (PDF) Version 1.4 for the dissemination of complete digital data, in a single exchange that contains all elements ready for final print reproduction. CMYK and spot-colour data are supported in any combination.
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