Where an associated file was found: the kind of object whose AF entry (or marked-content property list) lists it.
public enum PdfAssociatedFileLocation
ISO 32000-2 §14.13.3-§14.13.9 and PDF 2.0 Application Note 002 §3.1 and §6.2 (the list of locations is open).
kind:method, kind:property, kind:ctor. Press Esc to clear.AnnotationAn annotation (§14.13.9), including widgets and merged fields.CatalogThe document catalog: files associated with the whole document (§14.13.3).DocumentPartA document part (§14.13.8).FormXObjectA form XObject (§14.13.7), including an annotation's appearance stream.ImageXObjectAn image XObject (§14.13.7).MarkedContentA marked-content sequence: a property list in a Properties resource (§14.13.5, errata Table 409a).MetadataStreamA metadata stream (§14.13.1).OtherAny other object: found by a deep scan, or an object kind the walk does not classify (Application Note 002 §3.2).PageA page (§14.13.4).StructureElementA structure element (§14.13.6).StructureTreeRootThe structure tree root (Table 354).