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10.5. Marked Content

Marked-content operators (PDF 1.2) identify a portion of a PDF content stream as a marked-content element of interest to a particular application or PDF plug-in extension. Marked-content elements and the operators that mark them fall into two categories:

  • The MP and DP operators designate a single marked-content point in the content stream.

  • The BMC, BDC, and EMC operators bracket a marked-content sequence of objects within the content stream. Note that this is a sequence not simply of bytes in the content stream but of complete graphics objects. Each object is fully qualified by the parameters of the graphics state in which it is rendered.


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