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The document catalog points to the DPartRoot
/DPartRoot 1880 0 R -
Here is a sample DPartRootNode:
1880 0 obj << /Type /DPartRoot /DPartRootNode 830 0 R /RecordLevel 1 % optional, level at which hierarchy branches to leafs(?) /NodeNameList [ /Root /Record /Page ] % optional, provide levels of the tree with names >> endobj -
A DPart intermediate node dictionary; because the
DPartRootpoints to it, this is the actual root node of the DPart tree:830 0 obj << /Type /DPart /Parent 1880 0 R /DParts [ [ 831 0 R 947 0 R 1063 0 R 1180 0 R 1296 0 R 1412 0 R 1529 0 R 1647 0 R 1763 0 R 1879 0 R ]] % points to the DPart child nodes >> endobj -
Below is another sample DPart intermediate node dictionary:
831 0 obj << /Type /DPart /Parent 830 0 R /DPM << % DPart Metadata /Record 1 /RecordValues << /Address (3330 Bay Rd.) % ... other fields >> >> /DParts [ [ 803 0 R 805 0 R 807 0 R 809 0 R 811 0 R 813 0 R 815 0 R 817 0 R 819 0 R 821 0 R 825 0 R 827 0 R 829 0 R ]] % points to the DPart child nodes >> endobj -
Below is a sample DPart leaf node dictionary with start and end pages and inline DPM metadata using PDF dictionary syntax:
803 0 obj << /Type /DPart /Parent 831 0 R % points to the DPart parent node /Start 801 0 R % points to the first page in the DPart /DPM << % DPart Metadata /MediaType (Booklet) /Xerox << /Media << /MediaType (Booklet) >> >> >> >> endobj -
Each page dictionary with a corresponding DPart has a /DPart entry which contains an indirect pointer to a DPart dictionary, such as
/DPart 803 0 R