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# Index

## Classes

| Name | Description
--- | --- | ---
| IPDFStructureElement | Common interface for structure elements.
| IPDFStructureElementContent | Defines the content of a structure element.
| PDFAttributeClassCollection | Defines a collection of attribute class names.
| PDFAttributeClassMap | Defines mappings between names and attributes or attribute collections.
| PDFIdMap | Defines a mapping between identifiers (PDFStructureElement.ID property) and structure elements.
| PDFMarkedContentReference | Defines a reference to a marked-content sequence.
| PDFMarkedContentSequenceIdentifier | Defines a marked-content sequence identifier.
| PDFMarkInformation | Specifies the mark information for a PDF document.
| PDFObjectReference | Defines a reference to a PDF object.
| PDFRoleMap | Defines a mapping between structure types (PDFStructureElement.Type property) used in the document and their approximate equivalents in the set of standard structure types (the constants in PDFStandardStructureTypes class).
| PDFStandardArtifactAttribute | Defines a standard artifact attribute.
| PDFStandardLayoutAttribute | Defines a standard layout attribute.
| PDFStandardListAttribute | Defines a standard list attribute.
| PDFStandardPrintFieldAttribute | Defines a standard print field attribute.
| PDFStandardStructureTypes | Defines standard structure types to be used with PDFStructureElement.Type property.
| PDFStandardTableAttribute | Defines a standard table attribute.
| PDFStructureElement | Defines a structure element.
| PDFStructureElementAttribute | Defines the base class for attributes used by structure elements.
| PDFStructureElementAttributeCollection | Defines a collection of structure elements.
| PDFStructureElementCollection | Defines a collection of structure elements.
| PDFStructureElementContentCollection | Defines a collection of structure element contents.
| PDFStructureTree | Defines the logical structure of a document as a hierarchy of PDFStructureElement objects.
| PDFUserProperties | Defines a set of user properties that can be used as an attribute for a structure element.
| PDFUserProperty | Represents a user defined property.
| PDFUserPropertyCollection | Defines a collection of structure elements.

## Enums

| Name | Description
--- | --- | ---
| PDFStandardArtifactSubtype | Specifies the available values for PDFStandardArtifactAttribute.Subtype property.
| PDFStandardArtifactType | Specifies the available values for PDFStandardArtifactAttribute.Type property.
| PDFStandardLayoutBlockAlign | Specifies the available values for PDFStandardLayoutAttribute.BlockAlign property.
| PDFStandardLayoutBorderStyle | Specifies the available values for PDFStandardLayoutAttribute.BorderStyle property.
| PDFStandardLayoutInlineAlign | Specifies the available values for PDFStandardLayoutAttribute.InlineAlign property.
| PDFStandardLayoutPlacement | Specifies the available values for PDFStandardLayoutAttribute.Placement property.
| PDFStandardLayoutRubyAlign | Specifies the available values for PDFStandardLayoutAttribute.RubyAlign property.
| PDFStandardLayoutRubyPosition | Specifies the available values for PDFStandardLayoutAttribute.RubyPosition property.
| PDFStandardLayoutTextAlign | Specifies the available values for PDFStandardLayoutAttribute.TextAlign property.
| PDFStandardLayoutTextDecorationType | Specifies the available values for PDFStandardLayoutAttribute.TextDecorationType property.
| PDFStandardLayoutTextPosition | Specifies the available values for PDFStandardLayoutAttribute.TextPosition property.
| PDFStandardLayoutWritingMode | Specifies the available values for PDFStandardLayoutAttribute.WritingMode property.
| PDFStandardListNumbering | Specifies the available values for PDFStandardListAttribute.ListNumbering property.
| PDFStandardPrintFieldChecked | Specifies the available values for PDFStandardPrintFieldAttribute.Checked property.
| PDFStandardPrintFieldRole | Specifies the available values for PDFStandardPrintFieldAttribute.Role property.
| PDFStandardTableScope | Specifies the available values for PDFStandardTableAttribute.Scope property.