This software feature deals with PDF indirect object references, which allows defining and referencing objects within a PDF document. It enables the development of more advanced PDF tools and provides increased flexibility in managing different elements of a PDF file.
The parent variable is present for an object that acts as a reference to another object in some source. It holds the reference to the source object, allowing for a smooth de-referencing process whenever necessary. The objnum variable, only applicable to object references, marks the object number in the source. Objgen is the object generation in the source.
Aside from these, there are several other instance variables that are necessary for file control. The isfree variable indicates whether the object is in the free list and is available for re-use in other parts of the file as another object. The nextfree variable holds a direct reference to the next free object in the free list.
Overall, PDF::API2::Basic::PDF::Objind provides the necessary functions for creating and managing PDF files, making it a vital tool for anyone in the industry.
Version 0.72.003: N/A