1 Scope
This document describes a method for storing data in a PDF file that correspond to the processing steps of printed products. This method has three parts:
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1) metadata identifying processing steps;
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2) limitations on the interaction between PDF graphics objects that are part of a processing step and other PDF graphics objects;
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3) limitations on PDF graphics objects in processing steps.
This method is intended to be generic, i.e. not specific to packaging and labels.
In addition, this document defines the following packaging- and label-specific groups of processing-steps data:
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— data corresponding to finishing steps, such as cutting, folding or glueing;
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— Braille;
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— information panels;
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— indications of physical dimensions;
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— indications of intended positions of graphical elements;
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— printed white, for example on transparent or metallic surfaces;
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— printed varnish.