# Package org.apache.pdfbox.pdfparser.xref

Interface Summary
XReferenceEntry: An implementing class represents an entry, as it can be found in a PDF's crossreference stream (`PDFXRefStream`).

Class Summary
AbstractXReference: An extending class represents an entry, as it can be found in a PDF's crossreference stream (`PDFXRefStream`).
FreeXReference: A class representing a free reference in a PDF's crossreference stream (`PDFXRefStream`).
NormalXReference: A class representing a normal reference in a PDF's crossreference stream (`PDFXRefStream`).
ObjectStreamXReference: A class representing a reference to an object stream entry in a PDF's crossreference stream (`PDFXRefStream`).

Enum Summary
XReferenceType: An instance of this class represents a type for a `XReferenceEntry`, as it can be found in a PDF's `PDFXRefStream`.