| Modifier and Type | Class and Description |
|---|---|
| public abstract class | PDAttributeObject
An attribute object. |
| public class | PDDefaultAttributeObject
A default attribute object. |
| public class | PDMarkedContentReference
A marked-content reference. |
| public class | PDMarkInfo
The MarkInfo provides additional information relevant to specialized uses of structured documents. |
| public class | PDObjectReference
An object reference. |
| public class | PDParentTreeValue
This is described in the PDF specification in the ParentTree segment of the table "Entries in the structure tree root". |
| public class | PDStructureElement
A structure element. |
| public abstract class | PDStructureNode
A node in the structure tree. |
| public class | PDStructureTreeRoot
A root of a structure tree. |
| public class | PDUserAttributeObject
A User attribute object. |
| public class | PDUserProperty
A user property. |
| public class |