| DocumentResourceList | Represents a collection of resources for a document. |
| DocumentWriter | Represents a writer class for a document. |
| Encrypter | Represents an Encrypter class used for encryption of the document. |
| FontSubsetter | Represents an font sub setter. |
| OperatorWriter | Class represents the PDF operators. |
| PageAnnotationList | Represents a collection of annotations for a page. |
| PageColorSpaceList | Represents a collection of color spaces for a page. |
| PageExtGStateList | Represents a collection of external graphics states for a page. |
| PageFontList | Represents a collection of fonts for a page. |
| PagePatternList | Represents a collection of patterns for a page. |
| PagePropertiesList | Represents a collection of properties for a page. |
| PageResources | Represents a pages resources. |
| PageShadingList | Represents a collection of shadings for a page. |
| PageWriter | Represents a writer class for a page. |
| PageWriterState | Represents the page writers state. |
| PageXObjectList | Represents a collection of XObjects for a page. |