Aspose.PDF FOSS for Java

API reference for Aspose.Pdf FOSS for Java v26.6.0. 1026 public types organized by module.

Core API

Class	Description
`Artifact`	Represents a PDF artifact — content that is not part of the authored page content but is produced as a side effect of pagination or layout (ISO 32000-1:2008, §14.8.2.2).
`ArtifactCollection`	Represents a collection of Artifact objects found on a PDF page.
`AsposePdfLogging`	Centralised logging configuration for the `org.aspose.pdf` library.
`BackgroundArtifact`	Represents a background artifact — a convenience subclass for creating artifacts that serve as page backgrounds (ISO 32000-1:2008, §14.8.2.2).
`BaseParagraph`	Abstract base class for all content elements that can appear in a PDF page’s paragraph collection.
`BorderInfo`	Represents border styling information for a content element such as a table, row, or cell.
`Cell`	Represents a single cell within a Row of a Table.
`Cells`	Represents an ordered collection of Cell instances within a Row.
`Collection`	Represents the `/Collection` entry in a PDF Catalog (ISO 32000-1:2008 §12.3.5 — "Collections", also known as PDF portfolios).
`Color`	Represents a color value in one of several color spaces (RGB, Grayscale, CMYK).
`ColorConverter`	Converts color operators in page content streams from one color space to another.
`DefaultMetadataProperties`	String constants for commonly used XMP metadata property keys (ISO 16684-1).
`Document`	The central class for working with PDF documents (ISO 32000-1:2008).
`DocumentActions`	Document-level action triggers (ISO 32000-1:2008, §12.6.4.1, p.417).
`DocumentInfo`	Wraps the PDF document information dictionary (ISO 32000-1:2008, §14.3.3).
`DocumentPageImporter`	Imports pages from one Document into another by performing a full deep copy of the source page’s PDF object subgraph into fresh indirect objects belonging to the target document.
`EmbeddedFileCollection`	Collection of embedded files (attachments) in a PDF document.
`ExplicitDestination`	Abstract base for explicit destinations (ISO 32000-1:2008, §12.3.2.2, Table 151).
`ExportFilter`	Filter for controlling which annotations are exported.
`ExtGState`	Extended graphics state parameter dictionary (ISO 32000-1:2008, §8.4.5, Table 58).
`FileHyperlink`	Hyperlink that launches an external file when the host paragraph is activated.
`FileParams`	Embedded file parameters (ISO 32000-1:2008, §7.11.4, Table 46).
`FileSpecification`	Represents an embedded file specification (ISO 32000-1:2008, §7.11.3, Table 44).
`FitBExplicitDestination`	FitB explicit destination — fit page bounding box within window.
`FitBHExplicitDestination`	FitBH explicit destination — fit bounding box width, position at top.
`FitBVExplicitDestination`	FitBV explicit destination — fit bounding box height, position at left.
`FitExplicitDestination`	Fit explicit destination — display page scaled to fit entirely within window.
`FitHExplicitDestination`	FitH explicit destination — fit page width, position at top coordinate.
`FitRExplicitDestination`	FitR explicit destination — fit specified rectangle within window.
`FitVExplicitDestination`	FitV explicit destination — fit page height, position at left coordinate.
`FloatingBox`	Represents a floating box container that can hold paragraph elements at a specific position on the page.
`FontEmbeddingOptions`	Controls optional font-substitution behavior used during standard-compliance conversion and validation flows.
`FontUtilities`	Provides utility methods for working with fonts in a PDF document.
`FormFieldParagraph`	BaseParagraph adapter that lets form-field widgets participate in paragraph-based collections such as getParagraphs(), getParagraphs() and getParagraphs().
`GenericAction`	Represents a PDF action of an unknown or unsupported type.
`GoToAction`	Go-To action — navigate to a destination within the document (ISO 32000-1:2008, §12.6.4.2).
`GoToEmbeddedAction`	GoToE (Go-To-Embedded) action — navigates to a destination in an embedded PDF (ISO 32000-1:2008, §12.6.4.4).
`GoToRemoteAction`	Go-To Remote action — navigate to a destination in another PDF (ISO 32000-1:2008, §12.6.4.3).
`GoToURIAction`	GoToURI action — alias for UriAction for API compatibility with Aspose.PDF.
`GraphInfo`	Holds graphical properties for a single border side (color, line width, dash pattern).
`HeaderFooter`	Represents the header or footer area of a PDF page.
`Heading`	Represents a heading element that can be used in a table of contents.
`HideAction`	Hide action — shows or hides annotations (ISO 32000-1:2008, §12.6.4.10).
`HtmlFragment`	Represents an HTML content fragment that can be added to a PDF page’s paragraph collection.
`HtmlLoadOptions`	Options for loading an HTML document into a PDF document.
`HtmlSaveOptions`	Options for saving a document in HTML format.
`Hyperlink`	Abstract base for hyperlinks attached to layout paragraphs such as TextFragment, Image and `Heading`.
`Image`	Represents an image element that can be added to a PDF page’s paragraph collection.
`ImagePlacement`	Describes the placement of an image on a PDF page.
`ImagePlacementAbsorber`	Absorbs (finds) all image placements on PDF pages.
`ImageStamp`	Represents an image stamp that can be overlaid on a PDF page.
`ImportDataAction`	ImportData action — imports form data from an FDF or XFDF file (ISO 32000-1:2008, §12.6.4.17).
`JavaScriptAction`	JavaScript action — stores a JavaScript script (ISO 32000-1:2008, §12.6.4.16).
`JavaScriptCollection`	Provides access to the JavaScript name tree of a PDF document (ISO 32000-1:2008, §12.6.4.16 and §7.9.6).
`LabelRange`	A labelling range starting at a page index.
`LaunchAction`	Launch action — launches an application or opens a document (ISO 32000-1:2008, §12.6.4.1).
`Layer`	Represents an Optional Content Group (layer) in a PDF document (ISO 32000-1:2008, §8.11).
`LevelFormat`	Represents formatting settings for a single TOC level.
`LocalHyperlink`	Hyperlink to another location inside the same document — either a target BaseParagraph (set via setTarget(BaseParagraph)) or a specific 1-based page number (setTargetPageNumber(int)).
`MarginInfo`	Represents margin information for a content element.
`Matrix`	Represents a 3x3 affine transformation matrix used in PDF graphics state.
`NamedAction`	Named action — predefined action (ISO 32000-1:2008, §12.6.4.11).
`NamedDestination`	Represents a reference to a named destination in a PDF document (ISO 32000-1:2008, §12.3.2.3).
`NamedDestinations`	Provides access to named destinations in a PDF document (ISO 32000-1:2008, §12.3.2.3).
`Note`	Represents a footnote or endnote attached to a TextFragment (Aspose.PDF API compatibility).
`Operator`	Represents a PDF content stream operator (e.g., “BT”, “Tf”, “Td”, “Tj”, “q”, “Q”, “cm”, “re”).
`OperatorCollection`	Represents a sequence of operators from a PDF content stream.
`OperatorSelector`	Selects operators of a specific runtime type from an OperatorCollection.
`OutlineCollection`	Root outline collection — the /Outlines dictionary in the document catalog (ISO 32000-1:2008, §12.3.3).
`OutlineItemCollection`	Represents a single bookmark (outline item) in the document outline tree (ISO 32000-1:2008, §12.3.3, Table 153).
`Page`	Represents a single PDF page (ISO 32000-1:2008, §7.7.3.3).
`PageCollection`	Represents the collection of pages in a PDF document (ISO 32000-1:2008, §7.7.3.2).
`PageInfo`	Holds page layout information including dimensions and margins.
`PageLabel`	Describes a page-label range entry used by PageLabels.
`PageLabels`	Page labelling for a PDF document (ISO 32000-1:2008, §12.4.2).
`PageNumberStamp`	Represents a page number stamp that renders the current page number and total page count on each page of the PDF document.
`PageSize`	Predefined page sizes and custom page dimensions for PDF documents.
`Paragraphs`	Represents an ordered collection of BaseParagraph elements that make up the content of a page, cell, or other container.
`PdfAction`	Abstract base for all PDF actions (ISO 32000-1:2008, §12.6, p.414).
`PdfFormatConversionOptions`	Options controlling PDF/A (and other standard) validation and conversion.
`PdfPageStamp`	A stamp consisting of an entire PDF page, overlaid onto another page.
`PdfSaveOptions`	Options for saving a PDF document.
`Point`	Represents a point in 2D space with double-precision coordinates.
`Rectangle`	Represents a rectangle defined by lower-left and upper-right corners (ISO 32000-1:2008, §7.9.5).
`RenditionAction`	Rendition action — controls multimedia renditions (ISO 32000-1:2008, §12.6.4.13).
`ResetFormAction`	ResetForm action — resets form fields to default values (ISO 32000-1:2008, §12.6.4.15).
`Resources`	Wraps a PDF resource dictionary (ISO 32000-1:2008, §7.8.3).
`RgbToDeviceGrayConversionStrategy`	Converts RGB color values in a page’s content stream to DeviceGray equivalents.
`Row`	Represents a single row within a Table.
`Rows`	Represents an ordered collection of Row instances within a Table.
`SetOCGStateAction`	SetOCGState action — changes the state of Optional Content Groups (ISO 32000-1:2008, §12.6.4.12).
`Stamp`	Abstract base class for all stamp types that can be overlaid on PDF pages.
`SubmitFormAction`	SubmitForm action — submits form data to a URL (ISO 32000-1:2008, §12.6.4.14).
`Table`	Represents a table element that can be added to a PDF page’s paragraph collection.
`TextStamp`	Represents a text stamp that can be overlaid on a PDF page.
`TocInfo`	Represents Table of Contents information for a PDF document.
`TransitionAction`	Transition action — controls page transitions during presentations (ISO 32000-1:2008, §12.6.4.14).
`UriAction`	URI action — open a Uniform Resource Identifier (ISO 32000-1:2008, §12.6.4.7).
`ViewerPreferences`	PDF viewer preferences (ISO 32000-1:2008, §12.2, Table 150).
`WatermarkArtifact`	Represents a watermark artifact — a convenience subclass for creating pagination artifacts with the Watermark subtype (ISO 32000-1:2008, §14.8.2.2).
`WebHyperlink`	Hyperlink to an external URL.
`XForm`	Represents a Form XObject (ISO 32000-1:2008, §8.10).
`XFormCollection`	Collection of Form XObjects from a resource dictionary’s /XObject entry (ISO 32000-1:2008, §8.10).
`XImage`	Represents an image XObject in a PDF document (ISO 32000-1:2008, §8.9, Table 89).
`XImageCollection`	Collection of image XObjects from a page’s /XObject resource dictionary.
`XYZExplicitDestination`	XYZ explicit destination (ISO 32000-1:2008, Table 151).
`XfdfExporter`	Exports annotations and form field data from a PDF document to XFDF (XML Forms Data Format) per XFDF Specification Version 3.0 (August 2009).
`XfdfImporter`	Imports annotations and form field data from XFDF (XML Forms Data Format) into a PDF document, per XFDF Specification Version 3.0 (August 2009).
`XmpMetadata`	Provides access to XMP metadata of a PDF document (ISO 32000-1 §14.3.2, ISO 16684-1).
`XmpValue`	Represents a typed XMP metadata value (ISO 16684-1).

Interfaces

Interface	Description
`IAppointment`	Marker interface for PDF destinations — either an inline ExplicitDestination (page + coordinates) or a NamedDestination (name resolved through the document’s name tree at use time, ISO 32000-1:2008 §12.3.2.3).

Enumerations

Enumeration	Description
`ArtifactSubtype`	Defines the subtype of a pagination artifact (ISO 32000-1:2008, §14.8.2.2.1).
`ArtifactType`	Defines the type of an artifact (ISO 32000-1:2008, §14.8.2.2.1, Table 330).
`BorderCornerStyle`	Specifies the corner style for table borders.
`BorderSide`	Enumerates the sides of a rectangular border that should be drawn.
`ColorConversionStrategy`	Specifies the color conversion strategy to apply when processing PDF content.
`ColorSpace`	Supported PDF color spaces.
`ColorType`	Classification of the dominant colour content of a Page — used by getColorType() to answer “is this page colour, grayscale, or black-and-white?”.
`ConvertErrorAction`	Specifies the action to take when a PDF/A conversion encounters non-compliant elements.
`ConvertSoftMaskAction`	Specifies the action to take when a PDF/A conversion encounters soft masks.
`ConvertTransparencyAction`	Specifies the action to take when transparency is encountered during PDF/A conversion.
`CryptoAlgorithm`	Enumerates the cryptographic algorithms available for PDF encryption (ISO 32000-1:2008, Section 7.6).
`HorizontalAlignment`	Enumerates horizontal alignment options for content elements within a PDF page or container.
`HtmlDocumentType`	Represents the type of HTML document to generate.
`NumberingStyle`	Numbering style for headings and TOC entries.
`PageCoordinateType`	Specifies which page box should be used as the coordinate space for rendering-related operations.
`PageMode`	Document page mode — how the document should be displayed when opened.
`PdfFormat`	Enumerates PDF format standards and versions used for validation and conversion.
`RemoveFontsStrategy`	Flags controlling how fonts may be removed or subsetted while optimizing conversion output size.
`Rotation`	Rotation angle enumeration for PDF pages (ISO 32000-1:2008, §7.7.3.3).
`SaveFormat`	Specifies the format for saving a document.
`VerticalAlignment`	Enumerates vertical alignment options for content elements within a PDF page or container.

Annotations

Class	Description
`Annotation`	Abstract base for all PDF annotations (ISO 32000-1:2008, §12.5).
`AnnotationActionCollection`	Represents a collection of actions associated with an annotation (ISO 32000-1:2008, Section 12.6.3).
`AnnotationCollection`	Collection of annotations on a page (ISO 32000-1:2008, §12.5).
`Border`	Represents the border of an annotation or form field (ISO 32000-1:2008, §12.5.4).
`CaretAnnotation`	Caret annotation (ISO 32000-1:2008, Section 12.5.6.11, /Subtype /Caret).
`CircleAnnotation`	Circle annotation (ISO 32000-1:2008, Section 12.5.6.8, /Subtype /Circle).
`DefaultAppearance`	Represents the default appearance string (/DA) for form fields and free text annotations (ISO 32000-1:2008, Section 12.7.3.3).
`FileAttachmentAnnotation`	File attachment annotation (ISO 32000-1:2008, Section 12.5.6.15, /Subtype /FileAttachment).
`FreeTextAnnotation`	Free text annotation (ISO 32000-1:2008, Section 12.5.6.6, /Subtype /FreeText).
`GenericAnnotation`	Generic annotation for unknown or unsupported annotation subtypes.
`HighlightAnnotation`	Highlight annotation (ISO 32000-1:2008, Section 12.5.6.10, /Subtype /Highlight).
`InkAnnotation`	Ink annotation (ISO 32000-1:2008, Section 12.5.6.13, /Subtype /Ink).
`LineAnnotation`	Line annotation (ISO 32000-1:2008, Section 12.5.6.7, /Subtype /Line).
`LinkAnnotation`	Link annotation (ISO 32000-1:2008, Section 12.5.6.5, /Subtype /Link).
`MarkupAnnotation`	Abstract base for markup annotations (ISO 32000-1:2008, §12.5.6.2).
`PolygonAnnotation`	Polygon annotation (ISO 32000-1:2008, Section 12.5.6.9, /Subtype /Polygon).
`PolylineAnnotation`	Polyline annotation (ISO 32000-1:2008, Section 12.5.6.9, /Subtype /PolyLine).
`PopupAnnotation`	Popup annotation (ISO 32000-1:2008, Section 12.5.6.14, /Subtype /Popup).
`RedactionAnnotation`	Redaction annotation (ISO 32000-1:2008, Section 12.5.6.23, /Subtype /Redact).
`ScreenAnnotation`	Screen annotation (ISO 32000-1:2008, Section 12.5.6.18, /Subtype /Screen).
`SquareAnnotation`	Square annotation (ISO 32000-1:2008, Section 12.5.6.8, /Subtype /Square).
`SquigglyAnnotation`	Squiggly-underline annotation (ISO 32000-1:2008, Section 12.5.6.10, /Subtype /Squiggly).
`StampAnnotation`	Stamp annotation (ISO 32000-1:2008, Section 12.5.6.12, /Subtype /Stamp).
`StrikeOutAnnotation`	Strikeout annotation (ISO 32000-1:2008, Section 12.5.6.10, /Subtype /StrikeOut).
`TextAnnotation`	Text (sticky note) annotation (ISO 32000-1:2008, Section 12.5.6.4, /Subtype /Text).
`UnderlineAnnotation`	Underline annotation (ISO 32000-1:2008, Section 12.5.6.10, /Subtype /Underline).
`WatermarkAnnotation`	Watermark annotation (ISO 32000-1:2008, Section 12.5.6.22, /Subtype /Watermark).
`WidgetAnnotation`	Widget annotation (ISO 32000-1:2008, §12.5.6.19, /Subtype /Widget).

Enumerations

Enumeration	Description
`AnnotationFlags`	Annotation flag bits per ISO 32000-1:2008 §12.5.3, Table 165.
`AnnotationType`	Enumerates the standard PDF annotation types (ISO 32000-1:2008, §12.5.6).
`BorderStyle`	Border style for annotations and form fields (ISO 32000-1:2008, Table 166).
`FreeTextIntent`	Intent of a FreeTextAnnotation (ISO 32000-1:2008, §12.5.6.6).
`LineEnding`	Enumerates the line ending styles for line and polyline annotations.
`LineIntent`	Enumerates the intents of a line annotation.

Devices

Class	Description
`BmpDevice`	Renders a PDF page to BMP format.
`GifDevice`	Renders a PDF page to GIF format.
`JpegDevice`	Renders a PDF page to JPEG format with configurable compression quality.
`Margins`	Page margins in printer/device units, used by the C# printing API (`Aspose.Pdf.Devices.Margins`) for `PageSettings.Margins` and `PrinterSettings.DefaultPageSettings.Margins`.
`PageDevice`	Abstract base class for devices that render a PDF page to a raster image.
`PngDevice`	Renders a PDF page to PNG format.
`RenderingOptions`	Options for rendering PDF pages to images.
`Resolution`	Represents the resolution (DPI) for rendering PDF pages to images.
`TextDevice`	Extracts text from a PDF page and writes it to an output stream.
`TiffDevice`	Renders PDF pages to multi-page TIFF format.
`TiffSettings`	Settings for TIFF image output when using TiffDevice.

Enumerations

Enumeration	Description
`ColorDepth`	Specifies the color depth (bits per pixel) for TIFF image output.
`CompressionType`	Specifies the type of compression applied to TIFF images.
`ShapeType`	Specifies the shape (orientation) type for TIFF image output.

Drawing

Class	Description
`Arc`	Represents an arc drawing shape.
`BoundsOutOfRangeException`	Thrown when a drawing shape does not fit within the bounds of its container.
`Circle`	Represents a circle drawing shape.
`Curve`	Represents a Bezier curve drawing shape.
`Ellipse`	Represents an ellipse drawing shape.
`GradientAxialShading`	Represents an axial (linear) gradient shading pattern.
`Graph`	Represents a drawing canvas that can be added to a PDF page’s paragraph collection.
`GraphInfo-drawing`	Represents graphic styling properties for drawing shapes.
`Line`	Represents a line (or polyline) drawing shape.
`Path`	Represents a composite path made up of child Shape elements.
`PatternColorSpace`	Represents a pattern-based color space for use in drawing operations.
`Rectangle-drawing`	Represents a rectangle drawing shape.
`Shape`	Abstract base class for all drawing shapes in the PDF drawing API.
`ShapeCollection`	A collection of Shape objects with optional bounds checking.

Enumerations

Enumeration	Description
`BoundsCheckMode`	Specifies how bounds checking is performed when shapes are added to a collection.

Engine

Class	Description
`AESCipher`	AES cipher for PDF encryption and decryption — CBC mode.
`ASCII85Filter`	ASCII85Decode filter (§7.4.3, ISO 32000-1:2008).
`ASCIIHexFilter`	ASCIIHexDecode filter (§7.4.2, ISO 32000-1:2008).
`ActionFixes`	Action-related fixes for PDF/A compliance.
`ActionRules`	Validates action requirements for PDF/A compliance.
`AdobeGlyphList`	Static mapping from Adobe glyph names to Unicode codepoints.
`AnnotationFixes`	Annotation-related fixes for PDF/A compliance.
`AnnotationRules`	Validates annotation requirements for PDF/A compliance.
`AppearanceFilter`	Typed XFA template element `appearanceFilter`.
`Arc-template`	Typed XFA template element `arc`.
`Area`	Typed XFA template element `area`.
`ArithmeticDecoder`	Adaptive binary arithmetic decoder for JBIG2 (MQ-coder).
`ArrayLit`	`[a, , c]` array literal; `null` elements are elisions.
`AssignExpr`	Assignment `= += -= ...`.
`Assist`	Typed XFA template element `assist`.
`AxialShading`	Axial shading / linear gradient — ShadingType 2 (ISO 32000-1:2008, §8.7.4.5.2).
`Barcode`	Typed XFA template element `barcode`.
`BinaryExpr`	Binary operator (arithmetic, relational, equality, bitwise, shift, `instanceof`, `in`).
`Bind-sourceset`	Typed XFA template element `bind`.
`Bind-template`	Typed XFA template element `bind`.
`BindItems`	Typed XFA template element `bindItems`.
`BindingEngine`	The XFA data-binding (merge) engine: combines the typed template with the datasets data to produce the FormDom (XFA 3.0 binding chapter).
`BitOutputStream`	Writes bits to a byte array, MSB first, crossing byte boundaries.
`BlendComposite`	Separable blend-mode composite for PDF /BM (ISO 32000-1:2008, §11.3.5).
`Block`	{@code { …
`Bookend`	Typed XFA template element `bookend`.
`BoolLit`	`true` / `false`.
`Boolean-sourceset`	Typed XFA template element `boolean`.
`Boolean-template`	Typed XFA template element `boolean`.
`Border-template`	Typed XFA template element `border`.
`Break`	Typed XFA template element `break`.
`BreakAfter`	Typed XFA template element `breakAfter`.
`BreakBefore`	Typed XFA template element `breakBefore`.
`BreakStmt`	`break label?;`.
`Builtins`	Installs the ECMAScript 3 standard library into a Realm (ECMA-262 3rd ed., sec 15).
`Button`	Typed XFA template element `button`.
`CCITTFaxDecodeFilter`	CCITTFaxDecode filter — CCITT Group 3 (1D) and Group 4 (2D) fax decompression.
`CFFFontLoader`	Loads an AWT Font from a PDF font that has an embedded Type1C / CIDFontType0C / OpenType-CFF font program in its `/FontDescriptor /FontFile3` stream.
`CFFParser`	Minimal parser for the Compact Font Format (CFF) — Adobe Technical Note #5176.
`CIDFont`	CID font (ISO 32000-1:2008, §9.7.4).
`CMapParser`	Parses CMap data into a ToUnicodeCMap (ISO 32000-1:2008, §9.10).
`CalGrayColorSpace`	CalGray color space (ISO 32000-1:2008, §8.6.5.2).
`CalRGBColorSpace`	CalRGB color space (ISO 32000-1:2008, §8.6.5.3).
`CalcProperty`	Typed XFA template element `calcProperty`.
`Calculate`	Typed XFA template element `calculate`.
`CalendarSymbols`	Typed XFA template element `calendarSymbols`.
`CallExpr`	`callee(args)`.
`Caption`	Typed XFA template element `caption`.
`Certificate`	Typed XFA template element `certificate`.
`Certificates`	Typed XFA template element `certificates`.
`CheckButton`	Typed XFA template element `checkButton`.
`ChoiceList`	Typed XFA template element `choiceList`.
`ClassStep`	A class step (`#subform`, `#dataValue`, possibly indexed).
`CmykDisplay`	Display-oriented DeviceCMYK → sRGB conversion (ISO 32000-1:2008, §8.6.4.4).
`Color-template`	Typed XFA template element `color`.
`ColorSpaceBase`	Abstract base for all PDF color spaces (ISO 32000-1:2008, §8.6).
`Comb`	Typed XFA template element `comb`.
`Command`	Typed XFA template element `command`.
`ConditionalExpr`	{@code test ?.
`Config`	Typed XFA template element `config`.
`ConfigElements`	Registry of generated typed element constructors for this XFA grammar (element local name -> typed node).
`Connect-sourceset`	Typed XFA template element `connect`.
`Connect-template`	Typed XFA template element `connect`.
`ConnectString`	Typed XFA template element `connectString`.
`ConnectionSet`	Typed XFA template element `connectionSet`.
`ConnectionSetElements`	Registry of generated typed element constructors for this XFA grammar (element local name -> typed node).
`ContentArea`	Typed XFA template element `contentArea`.
`ContentStreamBuilder`	Builds a PDF content stream as a sequence of bytes.
`ContentStreamParser`	Parses PDF content streams into a list of Operator objects.
`Context`	Resolution context: the accessor roots plus the current node.
`ContinueStmt`	`continue label?;`.
`CoonsPatchShading`	Coons patch mesh — ShadingType 6 (ISO 32000-1:2008, §8.7.4.5.6).
`Corner`	Typed XFA template element `corner`.
`CurrencySymbol`	Typed XFA template element `currencySymbol`.
`CurrencySymbols`	Typed XFA template element `currencySymbols`.
`DCTDecodeFilter`	DCTDecode filter: JPEG to raw pixel samples.
`DEREncoder`	Encodes ASN.1 DER (Distinguished Encoding Rules) structures.
`DERNode`	Represents a parsed ASN.1 DER (Distinguished Encoding Rules) node.
`Data`	Typed XFA template element `data`.
`DataDescription`	Typed XFA template element `dataDescription`.
`DataDescriptionElements`	Registry of generated typed element constructors for this XFA grammar (element local name -> typed node).
`Datasets`	The `` packet wrapper.
`DatasetsElements`	Registry of generated typed element constructors for this XFA grammar (element local name -> typed node).
`Date`	Typed XFA template element `date`.
`DatePattern`	Typed XFA template element `datePattern`.
`DatePatterns`	Typed XFA template element `datePatterns`.
`DateTime`	Typed XFA template element `dateTime`.
`DateTimeEdit`	Typed XFA template element `dateTimeEdit`.
`DateTimeSymbols`	Typed XFA template element `dateTimeSymbols`.
`Day`	Typed XFA template element `day`.
`DayNames`	Typed XFA template element `dayNames`.
`Dd_group`	Typed XFA template element `dd:group`.
`DebuggerStmt`	Debugger statement (parsed, no-op).
`Decimal`	Typed XFA template element `decimal`.
`DecodeLimits`	Central guard against decompression bombs in stream decode filters (FlateDecode, LZWDecode, RunLengthDecode).
`DecodeSizeLimitException`	Thrown when a decode filter’s output exceeds maxDecodedBytes().
`DefaultUi`	Typed XFA template element `defaultUi`.
`Delete`	Typed XFA template element `delete`.
`Desc`	Typed XFA template element `desc`.
`DeviceCMYK`	The DeviceCMYK color space (ISO 32000-1:2008, §8.6.4.4).
`DeviceGray`	The DeviceGray color space (ISO 32000-1:2008, §8.6.4.2).
`DeviceNColorSpace`	DeviceN color space (ISO 32000-1:2008, §8.6.6.5).
`DeviceRGB`	The DeviceRGB color space (ISO 32000-1:2008, §8.6.4.3).
`DigestMethod`	Typed XFA template element `digestMethod`.
`DigestMethods`	Typed XFA template element `digestMethods`.
`DoWhileStmt`	`do body while (test)`.
`Draw`	Typed XFA template element `draw`.
`Edge`	Typed XFA template element `edge`.
`EffectiveInputPolicy`	Typed XFA template element `effectiveInputPolicy`.
`EffectiveOutputPolicy`	Typed XFA template element `effectiveOutputPolicy`.
`Embedded`	A resolved, embeddable font: a unique resource key, the Type0 dict, and the reader for GIDs.
`EmptyStmt`	Lone `;`.
`Encoding`	Typed XFA template element `encoding`.
`Encodings`	Typed XFA template element `encodings`.
`Encrypt`	Typed XFA template element `encrypt`.
`Engine`	Public entry point of the self-contained ECMAScript 3 engine.
`Era`	Typed XFA template element `era`.
`EraNames`	Typed XFA template element `eraNames`.
`Event`	Typed XFA template element `event`.
`ExData`	Typed XFA template element `exData`.
`ExObject`	Typed XFA template element `exObject`.
`ExclGroup`	Typed XFA template element `exclGroup`.
`Execute`	Typed XFA template element `execute`.
`ExponentialFunction`	Type 2 (Exponential Interpolation) function (ISO 32000-1:2008, §7.10.3).
`ExprStmt`	Expression used as a statement.
`Extras-sourceset`	Typed XFA template element `extras`.
`Extras-template`	Typed XFA template element `extras`.
`Field`	Typed XFA template element `field`.
`FileStructureFixes`	File-structure fixes for PDF/A and PDF/X compliance.
`FileStructureRules`	Validates PDF file structure requirements for PDF/A compliance.
`Fill`	Typed XFA template element `fill`.
`Filter`	Typed XFA template element `filter`.
`FilterFactory`	Registry of PDF stream filters (§7.4, ISO 32000-1:2008).
`FlateFilter`	FlateDecode filter (§7.4.4, ISO 32000-1:2008).
`Float`	Typed XFA template element `float`.
`Font-template`	Typed XFA template element `font`.
`FontDescriptor`	Wraps a PDF /FontDescriptor dictionary (ISO 32000-1:2008, §9.8, Table 122).
`FontDiskLookup`	Resolves a logical font name (e.g.
`FontEncoding`	Maps character codes (0-255) to glyph names and Unicode codepoints.
`FontFixes`	Font-related fixes for PDF/A compliance.
`FontMetrics`	Holds computed font metrics derived from a FontDescriptor and font-specific data.
`FontRepository`	Caches and resolves PDF fonts from resource dictionaries.
`FontRules`	Validates font requirements for PDF/A compliance (most critical rule set).
`ForInStmt`	`for (left in right) body`.
`ForStmt`	`for (init; test; update) body`.
`FormDom`	The Form DOM: the template structure merged with data (repeating containers expanded, fields bound), ready for layout (Stage C) and flattening (A5).
`FormField`	A field in the merged Form DOM: its SOM path, bound value, choice items, UI hint and the binding kind that produced it.
`FormFixes`	AcroForm-related fixes for PDF/A compliance.
`Format`	Typed XFA template element `format`.
`FreeFormGouraudShading`	Free-form Gouraud-shaded triangle mesh — ShadingType 4 (ISO 32000-1:2008, §8.7.4.5.4).
`FunctionBasedShading`	Function-based shading — ShadingType 1 (ISO 32000-1:2008, §8.7.4.5.1).
`FunctionDecl`	`function name(params) body` declaration.
`FunctionExpr`	`function name?(params) body` expression.
`GraphicsFixes`	Graphics-related fixes for PDF/A compliance.
`GraphicsRules`	Validates graphics-related requirements for PDF/A compliance.
`GraphicsState`	Tracks the mutable graphics state during PDF page rendering (ISO 32000-1:2008, §8.4).
`Handler`	Typed XFA template element `handler`.
`HeaderFooterOverlay`	The rendered header/footer of a page, ready to be wrapped as a Form XObject overlay.
`HintTableGenerator`	Generates hint tables for linearized PDF.
`Hyphenation`	Typed XFA template element `hyphenation`.
`ICCBasedColorSpace`	ICCBased color space (ISO 32000-1:2008, §8.6.5.5).
`Ident`	Identifier reference.
`IfStmt`	`if (test) consequent else alternate`.
`Image-template`	Typed XFA template element `image`.
`ImageEdit`	Typed XFA template element `imageEdit`.
`Index`	Index modifier on a step.
`IndexedColorSpace`	Indexed color space (ISO 32000-1:2008, §8.6.6.3).
`Inputs`	Inputs needed to build the OTF.
`Insert`	Typed XFA template element `insert`.
`Integer-sourceset`	Typed XFA template element `integer`.
`Integer-template`	Typed XFA template element `integer`.
`InteractiveFormRules`	Validates interactive form requirements for PDF/A compliance.
`Interpreter`	Tree-walking evaluator for ECMAScript 3 (ECMA-262 3rd ed.).
`Issuers`	Typed XFA template element `issuers`.
`Items`	Typed XFA template element `items`.
`JBIG2DecodeFilter`	JBIG2Decode filter — decodes JBIG2-encoded monochrome images.
`JPXDecodeFilter`	JPXDecode filter — JPEG 2000 decompression (§7.4.9, ISO 32000-1:2008).
`JSArray`	An ECMAScript Array exotic object (ECMA-262 3rd ed., sec 15.4).
`JSException`	Carries a value thrown by ECMAScript `throw` (or by a built-in raising a native error) up the Java stack until a `try`/`catch` handles it or it escapes `Engine.eval`.
`JSFunction`	Base class for all callable ECMAScript objects (ECMA-262 3rd ed., sec 13, 15.3).
`JSNull`	The ECMAScript `null` value (the sole instance of the Null type).
`JSNumber`	Numeric abstract operations: Number-to-String (sec 9.8.1), String-to-Number (sec 9.3.1), ToInteger/ToInt32/ToUint32 (sec 9.4-9.6) and radix conversion for `Number.prototype.toString`.
`JSObject`	A native ECMAScript object: an ordered map of named properties plus a prototype link (ECMA-262 3rd ed., sec 8.6).
`JSRegExp`	A RegExp object (ECMA-262 3rd ed., sec 15.10) backed by a compiled Pattern.
`JSSyntaxError`	Thrown by the lexer or parser when the source text is not valid ECMAScript 3.
`JSUnsupportedError`	Thrown when the interpreter encounters an ES3 construct it does not (yet) implement.
`JsExecutionLimitError`	Thrown when a script exceeds the interpreter’s execution-step budget (see `-Dxfa.js.maxSteps`).
`Keep`	Typed XFA template element `keep`.
`KeyUsage`	Typed XFA template element `keyUsage`.
`LZWFilter`	LZWDecode filter (§7.4.4.2, ISO 32000-1:2008).
`LabColorSpace`	Lab color space (ISO 32000-1:2008, §8.6.5.4).
`LabeledStmt`	`label: statement`.
`LangAltEntry`	A language-tagged value entry in a Language Alternative.
`LatticeGouraudShading`	Lattice-form Gouraud-shaded triangle mesh — ShadingType 5 (ISO 32000-1:2008, §8.7.4.5.5).
`LayoutContext`	Tracks the cursor position and content area bounds during page layout.
`LayoutEngine`	The main layout engine that converts high-level paragraph objects into PDF content stream bytes during `Document.save()`.
`Lexer`	Hand-written lexer for the ECMAScript 3 lexical grammar (ECMA-262 3rd ed., sec 7).
`Line-template`	Typed XFA template element `line`.
`Linear`	Typed XFA template element `linear`.
`LinearizationDetector`	Detects whether a PDF is linearized and validates the linearization.
`LinearizationParams`	Represents the linearization parameter dictionary (Table F.1, ISO 32000-1:2008).
`LinearizationPlan`	Holds the object ordering plan for writing a linearized PDF.
`LinearizedPDFWriter`	Writes a linearized PDF file conforming to ISO 32000-1:2008 Annex F.
`Locale`	Typed XFA template element `locale`.
`LocaleSet`	Typed XFA template element `localeSet`.
`LocaleSetElements`	Registry of generated typed element constructors for this XFA grammar (element local name -> typed node).
`LockDocument`	Typed XFA template element `lockDocument`.
`LogicalExpr`	`&&` / `\|\|` short-circuit operator.
`LogicalStructureRules`	Validates logical structure requirements for PDF/A Level A compliance.
`Manifest`	Typed XFA template element `manifest`.
`Map`	Typed XFA template element `map`.
`Margin`	Typed XFA template element `margin`.
`Mdp`	Typed XFA template element `mdp`.
`Medium`	Typed XFA template element `medium`.
`MemberExpr`	`object.property` or `object[property]`.
`Meridiem`	Typed XFA template element `meridiem`.
`MeridiemNames`	Typed XFA template element `meridiemNames`.
`Message`	Typed XFA template element `message`.
`MetadataFixes`	Metadata-related fixes for PDF/A compliance.
`MetadataRules`	Validates metadata requirements for PDF/A compliance.
`Month`	Typed XFA template element `month`.
`MonthNames`	Typed XFA template element `monthNames`.
`NameStep`	A named child step (`name`, possibly indexed).
`NameTree`	Read/write view over a PDF name tree (ISO 32000-1:2008, §7.9.6).
`NativeFunction`	A built-in function implemented in Java and backed by a lambda.
`NewExpr`	`new callee(args)`.
`Node`	Abstract syntax tree for ECMAScript 3 (ECMA-262 3rd ed.).
`NullLit`	`null`.
`NumberLit`	Numeric literal.
`NumberPattern`	Typed XFA template element `numberPattern`.
`NumberPatterns`	Typed XFA template element `numberPatterns`.
`NumberSymbol`	Typed XFA template element `numberSymbol`.
`NumberSymbols`	Typed XFA template element `numberSymbols`.
`NumberTree`	Read/write view over a PDF number tree (ISO 32000-1:2008, §7.9.7).
`NumericEdit`	Typed XFA template element `numericEdit`.
`OIDs`	Well-known OID constants for PKCS#7, X.509, and PDF signatures.
`ObjectLit`	{@code { k: v, …
`Occur`	Typed XFA template element `occur`.
`Oid`	Typed XFA template element `oid`.
`Oids-template`	Typed XFA template element `oids`.
`OpenTypeBuilder`	Builds a synthetic CFF-flavored OpenType (`.otf`) file in memory from a parsed CFF font + a PDF /Encoding + PDF /Widths.
`Operation`	Typed XFA template element `operation`.
`Overflow`	Typed XFA template element `overflow`.
`PDFCryptoUtils`	Shared cryptographic utilities for PDF encryption and decryption.
`PDFDecryptor`	Decrypts individual PDF objects (strings and streams).
`PDFEncryptionDict`	Wraps the /Encrypt dictionary from the PDF trailer (ISO 32000-1:2008, §7.6.1, Tables 20-21).
`PDFEncryptor`	Encrypts individual PDF objects (strings and streams).
`PDFKeyDerivation`	PDF encryption key derivation algorithms.
`PDFLexer`	PDF tokenizer: converts a byte stream into a sequence of PDF tokens.
`PDFParser`	Full PDF file parser implementing lazy object loading.
`PDFWriter`	Serializes a graph of PDF objects into a valid PDF file.
`PKCS7SignedData`	Parses and creates PKCS#7 SignedData structures (RFC 2315 §9).
`PageArea`	Typed XFA template element `pageArea`.
`PageLayout`	One physical page of placed content (page-local coordinates).
`PageObjectCollector`	Walks the object graph from each page to classify objects for linearization.
`PageRegion`	The content region a page draws into: the chosen pageArea’s contentArea box.
`PageSet`	Typed XFA template element `pageSet`.
`PaginatedLayout`	The full paginated layout (pre-emit).
`Para`	Typed XFA template element `para`.
`ParentStep`	Parent navigation (`..`).
`Parser`	Recursive-descent parser for ECMAScript 3 (ECMA-262 3rd ed., sec 11-14).
`PassthroughFilter`	No-op filter: returns data unchanged.
`Password`	Typed XFA template element `password`.
`PasswordEdit`	Typed XFA template element `passwordEdit`.
`Pattern`	Typed XFA template element `pattern`.
`PatternColorSpace-colorspace`	Pattern color space (ISO 32000-1:2008, §8.6.6.2).
`PdfAConverter`	Orchestrator for PDF/A and PDF/X conversion.
`PdfAValidationResult`	Collects and reports PDF/A validation violations.
`PdfAValidator`	PDF/A and PDF/X validation orchestrator.
`PdfAViolation`	Represents a single violation found during PDF/A validation.
`PdfArray`	PDF array object (§7.3.6, ISO 32000-1:2008).
`PdfBase`	Abstract base class for all nine PDF PDF object types (§7.3, ISO 32000-1:2008).
`PdfBoolean`	PDF boolean object (§7.3.2, ISO 32000-1:2008).
`PdfDictionary`	PDF dictionary object (§7.3.7, ISO 32000-1:2008).
`PdfFloat`	PDF real number object (§7.3.3, ISO 32000-1:2008).
`PdfFont`	Abstract base class for all PDF font types (ISO 32000-1:2008, §9.5).
`PdfFunction`	Abstract base for PDF functions (ISO 32000-1:2008, §7.10).
`PdfInteger`	PDF integer object (§7.3.3, ISO 32000-1:2008).
`PdfName`	PDF name object (§7.3.5, ISO 32000-1:2008).
`PdfNull`	PDF null object (§7.3.9, ISO 32000-1:2008).
`PdfObjectCloner`	Recursively clones a PDF object graph from one document so the result is independent of the source document and can be safely inserted into a target document.
`PdfObjectKey`	Key identifying an indirect PDF object by its object number and generation number.
`PdfObjectReference`	PDF indirect object reference (§7.3.10, ISO 32000-1:2008).
`PdfPageRenderer`	Core PDF page rendering engine (ISO 32000-1:2008, §8 & §9).
`PdfPattern`	Abstract base for PDF patterns (ISO 32000-1:2008, §8.7).
`PdfSigner`	Signs and verifies PDF documents using PKCS#7 detached signatures (ISO 32000-1:2008, §12.8).
`PdfStream`	PDF stream object (§7.3.8, ISO 32000-1:2008).
`PdfString`	PDF string object (§7.3.4, ISO 32000-1:2008).
`PdfXFixes`	PDF/X-specific fixes (ISO 15930).
`PdfXRules`	Validates PDF/X compliance requirements.
`Picture`	Typed XFA template element `picture`.
`PostScriptFunction`	Type 4 (PostScript Calculator) function (ISO 32000-1:2008, §7.10.5).
`Predicate`	A structural/comparison predicate `relativePath OP literal` (or a bare path = truthiness).
`PredictorDecoder`	PNG and TIFF predictor support for Flate/LZW filters (§7.4.4.4, ISO 32000-1:2008).
`Program`	A complete parsed program (list of top-level statements).
`Property-ast`	One `key: value` entry of an object literal.
`Property-runtime`	A single property slot with its ES3 attributes.
`PropertyStep`	A property step (`.#name`, `.#x`) — yields an attribute/property value.
`Proto`	Typed XFA template element `proto`.
`QrEncoder`	A dependency-free QR Code (Model 2) encoder implementing ISO/IEC 18004.
`Query`	Typed XFA template element `query`.
`RC4Cipher`	RC4 (ARCFOUR) stream cipher for PDF decryption.
`Radial`	Typed XFA template element `radial`.
`RadialShading`	Radial shading / radial gradient — ShadingType 3 (ISO 32000-1:2008, §8.7.4.5.3).
`RandomAccessReader`	Random-access reader for PDF files.
`Realm`	The set of intrinsic objects for one execution environment (ECMA-262 3rd ed., sec 15): the global object plus every standard prototype and constructor.
`Reason`	Typed XFA template element `reason`.
`Reasons`	Typed XFA template element `reasons`.
`RecordSet`	Typed XFA template element `recordSet`.
`Rectangle-template`	Typed XFA template element `rectangle`.
`Ref`	Typed XFA template element `ref`.
`RegexLit`	`/pat/flags` literal.
`Report`	Outcome of a resolution pass.
`ResourceBuilder`	Builds the /Resources dictionary for a PDF page during layout.
`ResourceOptimizer`	Size-reduction passes over a parsed document’s object graph, driven by OptimizationOptions.
`Result`	Result tuple from build: the `/Type0` font dict to register under /Resources/Font, plus the TrueTypeReader the caller will need to map Unicode → glyph IDs when encoding text.
`Result-flatten`	Outcome of a flatten operation (the A5.4 acceptance numbers).
`Result-layout`	The outcome of laying a flowed-root form into one region.
`Result-paint`	Outcome of a paint pass.
`Result-script`	Outcome of a load-time scripting pass.
`ReturnStmt`	`return arg?;`.
`RootElement`	Typed XFA template element `rootElement`.
`RunLengthFilter`	RunLengthDecode filter (§7.4.5, ISO 32000-1:2008).
`SampledFunction`	Type 0 (Sampled) function (ISO 32000-1:2008, §7.10.2).
`Scope`	A lexical environment / scope-chain node (ECMA-262 3rd ed., sec 10.1.4).
`Script`	Typed XFA template element `script`.
`SecureXml`	Factory for XXE-hardened XML parsers, shared by every site that parses untrusted XML (XFA packets, XFDF import, bookmark XML import).
`SecurityUtils`	Small security-related utility helpers used by legacy-compatible tests.
`Select`	Typed XFA template element `select`.
`SeparationColorSpace`	Separation color space (ISO 32000-1:2008, §8.6.6.4).
`SequenceExpr`	Comma operator `a, b, c`.
`SetProperty`	Typed XFA template element `setProperty`.
`Shading`	Abstract base for shading dictionaries (ISO 32000-1:2008, §8.7.4.3).
`ShadingPattern`	Shading pattern — PatternType 2 (ISO 32000-1:2008, §8.7.4).
`ShadingRenderer`	Renders shading fills onto a Graphics2D context.
`SignData`	Typed XFA template element `signData`.
`Signature`	Typed XFA template element `signature`.
`SignatureVerificationResult`	Result of verifying a PDF signature.
`SignerInfo`	Per-signer information within a PKCS#7 SignedData structure (RFC 2315 §9.2).
`Signing`	Typed XFA template element `signing`.
`SoapAction`	Typed XFA template element `soapAction`.
`SoapAddress`	Typed XFA template element `soapAddress`.
`Solid`	Typed XFA template element `solid`.
`SomExpr`	Parsed SOM (Scripting Object Model) expression — XFA 3.0 SOM grammar.
`SomParser`	Parses a SOM expression string into a SomExpr.
`SomResolver`	Evaluates a SomExpr over the typed XFA model (template/data/form trees).
`Source-sourceset`	Typed XFA template element `source`.
`SourceSet`	Typed XFA template element `sourceSet`.
`SourceSetElements`	Registry of generated typed element constructors for this XFA grammar (element local name -> typed node).
`Speak`	Typed XFA template element `speak`.
`Spec`	The boundary content governing a paginating flowed form.
`SplitPlan`	The split plan for one laid-out form (no splitting performed).
`SplitPoint`	A page boundary: the first unit that belongs to the next page.
`StandardFonts`	Registry of the 14 Standard PDF Fonts (ISO 32000-1:2008, §9.6.2.2).
`StandardSecurityHandler`	Standard security handler — validates passwords and produces encryption keys.
`Stats`	Result counters for logging/tests.
`Step`	One navigation step.
`Stipple`	Typed XFA template element `stipple`.
`StitchingFunction`	Type 3 (Stitching) function (ISO 32000-1:2008, §7.10.4).
`StringLit`	String literal (already decoded).
`Stringprep`	Minimal SASLprep implementation used by security-related regression tests.
`StringprepException`	Thrown when a string fails SASLprep processing.
`Subform`	Typed XFA template element `subform`.
`SubformSet`	Typed XFA template element `subformSet`.
`SubjectDN`	Typed XFA template element `subjectDN`.
`SubjectDNs`	Typed XFA template element `subjectDNs`.
`Submit`	Typed XFA template element `submit`.
`SwitchCase`	One `case x:` or `default:` clause.
`SwitchStmt`	{@code switch (disc) { …
`TensorPatchShading`	Tensor-product patch mesh — ShadingType 7 (ISO 32000-1:2008, §8.7.4.5.7).
`Text-sourceset`	Typed XFA template element `text`.
`Text-template`	Typed XFA template element `text`.
`TextEdit`	Typed XFA template element `textEdit`.
`TextExtractor`	Extracts text from PDF page content streams by processing text operators (ISO 32000-1:2008, §9.4).
`TextLayoutHelper`	Provides text measurement and word wrapping using PDF standard font metrics.
`TextRenderer`	Renders text glyphs onto a Graphics2D context (ISO 32000-1:2008, §9.4).
`ThisExpr`	`this`.
`ThrowStmt`	`throw arg;`.
`TilingPattern`	Tiling pattern (ISO 32000-1:2008, §8.7.3).
`Time`	Typed XFA template element `time`.
`TimePattern`	Typed XFA template element `timePattern`.
`TimePatterns`	Typed XFA template element `timePatterns`.
`TimeStamp`	Typed XFA template element `timeStamp`.
`ToUnicodeCMap`	A parsed ToUnicode CMap (ISO 32000-1:2008, §9.10.3).
`Token`	A single PDF token with its type, string value, and file position.
`Token-lexer`	A single lexical token produced by Lexer.
`ToolTip`	Typed XFA template element `toolTip`.
`TransparencyFixes`	Transparency-related fixes for PDF/A-1 compliance.
`TransparencyRules`	Validates transparency requirements for PDF/A compliance.
`Traversal`	Typed XFA template element `traversal`.
`Traverse`	Typed XFA template element `traverse`.
`TrueTypeFont`	TrueType font (/Subtype /TrueType) - ISO 32000-1:2008, 9.6.3.
`TrueTypeReader`	Reads TrueType/OpenType font files (sfnt format).
`TryStmt`	`try {` catch (p) { } finally { }}.
`Type0Font`	Type 0 (Composite) font (ISO 32000-1:2008, §9.7).
`Type0FontBuilder`	Builds the PDF object graph required to embed a TrueType font as a `/Type0` composite font with `/Identity-H` encoding (ISO 32000-1:2008, §9.7).
`Type1Font`	Simple Type 1 font (/Subtype /Type1) — ISO 32000-1:2008, §9.6.
`Type3Font`	Type 3 font (/Subtype /Type3) — ISO 32000-1:2008, §9.6.5.
`Types`	Pure ECMAScript abstract operations that do not require calling user code: `typeof`, ToBoolean, primitive coercions and strict equality (ECMA-262 3rd ed., sec 9, 11.9.6).
`Ui`	Typed XFA template element `ui`.
`UnaryExpr`	Unary prefix operator: {@code !.
`Undefined`	The ECMAScript `undefined` value (the sole instance of the Undefined type).
`Update`	Typed XFA template element `update`.
`UpdateExpr`	`++`/`--`, prefix or postfix.
`Uri`	Typed XFA template element `uri`.
`User`	Typed XFA template element `user`.
`UserFunction`	A function defined in ECMAScript source (a function declaration or expression).
`Validate`	Typed XFA template element `validate`.
`Value`	Typed XFA template element `value`.
`VarDeclarator`	A single declarator inside a `var` statement.
`VarStmt`	`var a = 1, b;`.
`Variables`	Typed XFA template element `variables`.
`WhileStmt`	`while (test) body`.
`WithStmt`	`with (object) body`.
`WsdlAddress`	Typed XFA template element `wsdlAddress`.
`WsdlConnection`	Typed XFA template element `wsdlConnection`.
`XRefEntry`	Represents a single cross-reference entry in a PDF file.
`XRefParser`	Parser for PDF cross-reference tables and streams as defined in ISO 32000-1:2008, §7.5.4 (text xref tables) and §7.5.8 (xref streams).
`XfaAcroFormConverter`	Converts an XFA form to a properly rendered, editable AcroForm document — the public `XfaForm.convertToAcroForm(...)` path (Aspose `Form.Type=FormType.Standard`).
`XfaAttribute`	A typed accessor for one attribute of an XfaNode, backed by a Codec that coerces between the attribute’s string form and a Java type (String, Integer, Boolean, XfaMeasurement or a generated enum).
`XfaBookends`	Resolves the XFA boundary content a flowed form inserts at page boundaries (Stage C, sprint L4): leaders / trailers at explicit breaks (§ break) and overflow leaders / trailers (§ bookends), laying each referenced subform into a XfaLayoutNode prototype of known height so XfaPaginator can insert it per page.
`XfaDuplex`	Applies XFA simplex/duplex page qualification to a paginated layout (Stage C, sprint L4.3): honours a `restriction when the governing` forces content onto a physical odd/even side.
`XfaFlattener`	Maps a merged XFA FormDom into ordinary AcroForm fields on a Document, so generic PDF viewers (which cannot render XFA) display the form and its data.
`XfaFlowLayout`	Builds the XFA Layout DOM for a flowed-root form by flowing its content top-to-bottom into a SINGLE content region (Stage C, sprint L1).
`XfaFontResolver`	Resolves the real font a piece of XFA text should be painted in, in strict priority order, and builds an embeddable `/Type0` font from it (XFA-FONTEMBED sprint).
`XfaGeometry`	Resolves an XFA layout box (a Form DOM field/draw node) to an absolute PDF Rectangle on a page, for positioned layout (Stage C, sprint C1).
`XfaGrowableHeight`	Computes the height of a growable XFA leaf (field / draw) from its bound data (Stage C, sprint L1.2).
`XfaImageXObject`	Decodes an XFA `(the base64 payload of a`/`` logo or picture) into a PDF Image XObject stream ready to register with registerImage(String, PdfStream) and paint via `cm`+`Do`.
`XfaInstanceManager`	The XFA instanceManager host object (Stage B / B3.2) for a variable-occurrence container — accessed in script as `_` (e.g.
`XfaLayoutNode`	A placed object in the XFA Layout DOM (Stage C, sprint L1) — the internal tree produced when a flowed-root form is laid into a content region.
`XfaMeasurement`	An XFA measurement: a numeric value plus a unit (XFA 3.0 measurement datatype).
`XfaMedium`	Resolves the page dimensions an XFA form declares via its `` element (XFA 3.0 §“medium”) — the form’s own page size, used to size the flattened/painted page instead of a leftover placeholder MediaBox (which on dynamic XFA PDFs is often inverted or wrong).
`XfaModel`	The consolidated typed view over a whole XfaPacketSet: typed roots for every XFA grammar a form may carry.
`XfaNamespaces`	Canonicalises XFA namespace URIs to their version-independent family.
`XfaNode`	Base of the typed XFA template model.
`XfaNodeFactory`	Maps an XFA element to its typed XfaNode subclass, routed by the element’s namespace family.
`XfaPacket`	One XFA packet: its name, its parsed DOM and (when available) the exact source bytes it was read from.
`XfaPacketReader`	Reads the AcroForm `/XFA` entry into a typed XfaPacketSet.
`XfaPacketSet`	The full set of XFA packets parsed from a PDF’s `/XFA` entry, with typed accessors per packet plus the assembled `xdp` document.
`XfaPacketWriter`	Writes a modified XfaPacketSet back to the PDF `/XFA` entry, replacing the former `XfaPacketParser` write path.
`XfaPageSplitter`	Finds the page split points of a laid-out flowed form (Stage C, sprint L2 PART B): walks the flow top-to-bottom against the per-page content region height and determines where each page’s content ends, honouring XFA keep (keep-together) and break (forced break) rules.
`XfaPaginator`	Applies an L2 SplitPlan to produce a paginated Layout DOM and emits the resulting multi-page PDF (Stage C, sprint L3).
`XfaPainter`	Paints positioned XFA content (Stage C, sprint C2) into a page content stream: box model (fill + border edges + corners), field/caption text, honouring `presence`.
`XfaProtoResolver`	Resolves XFA prototype references at the model level: `use` (intra-document prototype by id) and `usehref` (prototype by href/id), plus `proto` packet sources (XFA 3.0 sec on `use`/`usehref`).
`XfaScriptError`	Raised when an XFA script fails to parse or throws during execution.
`XfaScriptHost`	The XFA scripting host (Stage B / B3.1 PART A): owns one JS-0 Engine, injects the XFA host objects the corpus scripts use (`xfa` + `host`/`app`/`util`/`console`/ `event`) onto the global object, and bridges `xfa.resolveNode`/`resolveNodes` to the Stage-A SomResolver over the merged Form DOM.
`XfaScriptNode`	A live JavaScript view of an XFA Form-DOM node (Stage B / B3.1 A.2).
`XfaScripting`	Stage B / B3.1 PART B — executes the load-time XFA JavaScript over a merged Form DOM: initialize events (seed) → calculate (derive values, in SOM-dependency topological order with cycle detection) → ready events.
`XfaTemplateElements`	Registry of generated typed element constructors for this XFA grammar (element local name -> typed node).
`XmlConnection`	Typed XFA template element `xmlConnection`.
`XmpMetadataHandler`	Reads and writes XMP metadata packets for PDF/A compliance.
`XmpNamespaceRegistry`	Registry of XMP namespace prefix-to-URI mappings (ISO 16684-1).
`XmpParser`	Parses XMP XML (ISO 16684-1) into an internal property map.
`XmpProperty`	Internal representation of an XMP property value.
`XmpWriter`	Serializes an XMP property map to UTF-8 XMP XML with packet wrapper (ISO 16684-1).
`XsdConnection`	Typed XFA template element `xsdConnection`.

Interfaces

Interface	Description
`Codec`	Bidirectional string codec for an attribute value.
`Constructor`	Functional interface for a native `[[Construct]]`.
`Ctor`	Constructor functional interface for a typed node.
`IPdfVisitor`	Visitor interface for type-safe traversal of PDF object graphs.
`Native`	Functional interface for a native `[[Call]]`.
`ObjectResolver`	Functional interface for lazy loading of indirect objects.
`PdfARule`	A single PDF/A validation rule.
`PdfFilter`	Interface for PDF stream filters (§7.4, ISO 32000-1:2008).
`ReferenceRegistry`	Allocates object keys in the target document.
`Type3GlyphExecutor`	Executes a Type 3 glyph-description content stream (ISO 32000 §9.6.5).

Enumerations

Enumeration	Description
`AbbrValue`	Allowed values of the `abbr` attribute.
`AccessValue`	Allowed values of the `access` attribute.
`ActionValue`	Allowed values of the `action` attribute.
`ActivityValue`	Allowed values of the `activity` attribute.
`AfterValue`	Allowed values of the `after` attribute.
`AllowMacroValue`	Allowed values of the `allowMacro` attribute.
`AllowRichTextValue`	Allowed values of the `allowRichText` attribute.
`AnchorTypeValue`	Allowed values of the `anchorType` attribute.
`AspectValue`	Allowed values of the `aspect` attribute.
`BaseProfileValue`	Allowed values of the `baseProfile` attribute.
`BeforeValue`	Allowed values of the `before` attribute.
`BindingKind`	How a node obtained (or did not obtain) its data binding.
`BlankOrNotBlankValue`	Allowed values of the `blankOrNotBlank` attribute.
`BofActionValue`	Allowed values of the `bofAction` attribute.
`BreakValue`	Allowed values of the `break` attribute.
`CapValue`	Allowed values of the `cap` attribute.
`ChecksumValue`	Allowed values of the `checksum` attribute.
`CipherType`	Supported cipher types (`IDENTITY` = no encryption applied).
`CircularValue`	Allowed values of the `circular` attribute.
`CommandTypeValue`	Allowed values of the `commandType` attribute.
`CommitOnValue`	Allowed values of the `commitOn` attribute.
`CredentialServerPolicyValue`	Allowed values of the `credentialServerPolicy` attribute.
`CursorLocationValue`	Allowed values of the `cursorLocation` attribute.
`CursorTypeValue`	Allowed values of the `cursorType` attribute.
`DataPrepValue`	Allowed values of the `dataPrep` attribute.
`DataValue`	Allowed values of the `data` attribute.
`Dd_modelValue`	Allowed values of the `dd:model` attribute.
`DisableValue`	Allowed values of the `disable` attribute.
`Ecc`	Error-correction level.
`EmbedPDFValue`	Allowed values of the `embedPDF` attribute.
`EofActionValue`	Allowed values of the `eofAction` attribute.
`ExcludeAllCapsValue`	Allowed values of the `excludeAllCaps` attribute.
`ExcludeInitialCapValue`	Allowed values of the `excludeInitialCap` attribute.
`ExecuteTypeValue`	Allowed values of the `executeType` attribute.
`FormatTestValue`	Allowed values of the `formatTest` attribute.
`FormatValue`	Allowed values of the `format` attribute.
`HAlignValue`	Allowed values of the `hAlign` attribute.
`HScrollPolicyValue`	Allowed values of the `hScrollPolicy` attribute.
`HandValue`	Allowed values of the `hand` attribute.
`HighlightValue`	Allowed values of the `highlight` attribute.
`HyphenateValue`	Allowed values of the `hyphenate` attribute.
`IntactValue`	Allowed values of the `intact` attribute.
`InvertedValue`	Allowed values of the `inverted` attribute.
`JoinValue`	Allowed values of the `join` attribute.
`KerningModeValue`	Allowed values of the `kerningMode` attribute.
`Kind`	Index kinds.
`LayoutValue`	Allowed values of the `layout` attribute.
`LineThroughPeriodValue`	Allowed values of the `lineThroughPeriod` attribute.
`LineThroughValue`	Allowed values of the `lineThrough` attribute.
`ListenValue`	Allowed values of the `listen` attribute.
`LockTypeValue`	Allowed values of the `lockType` attribute.
`MarkValue`	Allowed values of the `mark` attribute.
`MatchValue`	Allowed values of the `match` attribute.
`Mode`	Pagination mode chosen for a form.
`MultiLineValue`	Allowed values of the `multiLine` attribute.
`NameValue`	Allowed values of the `name` attribute.
`NextValue`	Allowed values of the `next` attribute.
`NullTestValue`	Allowed values of the `nullTest` attribute.
`OddOrEvenValue`	Allowed values of the `oddOrEven` attribute.
`Op`	Comparison operators.
`OpenValue`	Allowed values of the `open` attribute.
`OperationValue`	Allowed values of the `operation` attribute.
`OrientationValue`	Allowed values of the `orientation` attribute.
`OverlinePeriodValue`	Allowed values of the `overlinePeriod` attribute.
`OverlineValue`	Allowed values of the `overline` attribute.
`OverrideValue`	Allowed values of the `override` attribute.
`PagePositionValue`	Allowed values of the `pagePosition` attribute.
`PermissionsValue`	Allowed values of the `permissions` attribute.
`PickerValue`	Allowed values of the `picker` attribute.
`PlacementValue`	Allowed values of the `placement` attribute.
`PostureValue`	Allowed values of the `posture` attribute.
`PresenceValue`	Allowed values of the `presence` attribute.
`PreviousValue`	Allowed values of the `previous` attribute.
`PrintCheckDigitValue`	Allowed values of the `printCheckDigit` attribute.
`PriorityValue`	Allowed values of the `priority` attribute.
`RelationValue`	Allowed values of the `relation` attribute.
`RestoreStateValue`	Allowed values of the `restoreState` attribute.
`Root`	Accessor shortcut roots (sec on SOM accessors).
`RunAtValue`	Allowed values of the `runAt` attribute.
`SaveValue`	Allowed values of the `save` attribute.
`ScopeValue`	Allowed values of the `scope` attribute.
`ScriptTestValue`	Allowed values of the `scriptTest` attribute.
`Severity`	Severity levels for PDF/A violations.
`ShapeValue`	Allowed values of the `shape` attribute.
`SignatureTypeValue`	Allowed values of the `signatureType` attribute.
`SlopeValue`	Allowed values of the `slope` attribute.
`Source-paint`	How a family was resolved (for reporting).
`StartNewValue`	Allowed values of the `startNew` attribute.
`StrokeValue`	Allowed values of the `stroke` attribute.
`TargetTypeValue`	Allowed values of the `targetType` attribute.
`TextEntryValue`	Allowed values of the `textEntry` attribute.
`TextLocationValue`	Allowed values of the `textLocation` attribute.
`TokenType`	Enumeration of all PDF token types.
`TokenType-lexer`	Lexical token categories for the ECMAScript 3 grammar (ECMA-262, 3rd ed.).
`TransferEncodingValue-sourceset`	Allowed values of the `transferEncoding` attribute.
`TransferEncodingValue-template`	Allowed values of the `transferEncoding` attribute.
`TrayInValue`	Allowed values of the `trayIn` attribute.
`TrayOutValue`	Allowed values of the `trayOut` attribute.
`TruncateValue`	Allowed values of the `truncate` attribute.
`Type`	The type of cross-reference entry.
`TypeValue`	Allowed values of the `type` attribute.
`UnderlinePeriodValue`	Allowed values of the `underlinePeriod` attribute.
`UnderlineValue`	Allowed values of the `underline` attribute.
`UpsModeValue`	Allowed values of the `upsMode` attribute.
`UsageValue`	Allowed values of the `usage` attribute.
`VAlignValue`	Allowed values of the `vAlign` attribute.
`VScrollPolicyValue`	Allowed values of the `vScrollPolicy` attribute.
`ValueType`	The type of XMP property value.
`WeightValue`	Allowed values of the `weight` attribute.
`XfaPolicy`	Policy for the AcroForm’s `/XFA` entry after flattening.
`Xfd_dataNodeValue`	Allowed values of the `xfd:dataNode` attribute.

Facades

Class	Description
`Bookmark`	Represents a bookmark (outline item) in a PDF document.
`Bookmarks`	Represents a typed list of Bookmark objects.
`ContentsResizeParameters`	Parameters for resizing page contents.
`ContentsResizeValue`	Represents a value used in content resizing parameters.
`DocumentPrivilege`	Represents the access privileges (permissions) for a PDF document (ISO 32000-1:2008, Table 22).
`Form`	A convenience facade for working with PDF interactive forms (AcroForms).
`FormEditor`	Provides methods for editing form fields in a PDF document: listing fields, filling values, flattening, and removing fields.
`FormFieldFacade`	Visual-style facade applied to fields created via addField(FieldType, String, String, int, double, double, double, double).
`FormattedText`	Represents formatted text with font, color, and encoding properties, used primarily for stamps in the facades API.
`PageBreak`	Page-break descriptor used by addPageBreak(Document, Document, PageBreak[]).
`PdfAnnotationEditor`	Provides methods for managing annotations in a PDF document: flattening, deleting, and counting annotations.
`PdfBookmarkEditor`	Provides methods for creating, extracting, and deleting bookmarks (outlines) in a PDF document.
`PdfContentEditor`	Provides methods for editing PDF content, primarily text replacement operations.
`PdfConverter`	Converts PDF pages to raster images (JPEG, PNG).
`PdfExtractor`	Facade for extracting text and images from PDF documents.
`PdfFileEditor`	Provides methods for manipulating PDF files: concatenating, extracting pages, splitting, inserting, and deleting pages.
`PdfFileInfo`	Provides read-only access to PDF document metadata and properties such as title, author, page count, and encryption status.
`PdfFileMend`	Legacy “mend” facade for adding raster images and FormattedText annotations to existing PDFs without rebuilding the page from scratch.
`PdfFileSecurity`	Provides methods for managing PDF document security: encryption, decryption, passwords, and access permissions.
`PdfFileSignature`	Facade for working with PDF digital signatures.
`PdfFileStamp`	Provides methods for adding stamps (text or image) to PDF pages.
`PdfPageEditor`	Provides methods for editing individual page properties such as size, rotation, and retrieving page information.
`PdfViewer`	Facade for viewing and printing PDF documents.
`PdfXmpMetadata`	Thin facade over getMetadata(), mirroring `Aspose.Pdf.Facades.PdfXmpMetadata`.
`ReplaceTextStrategy`	Controls how replaceText(String, String) performs replacements.
`SignatureName`	Represents a signature field name returned by getSignatureNames(boolean).
`Stamp-facades`	Represents a stamp in the facades API that can be applied via PdfFileStamp.
`StampInfo`	Lightweight information about a stamp placed on a page.

Enumerations

Enumeration	Description
`Algorithm`	Enumerates the high-level algorithm families used by PdfFileSecurity.
`EncodingType`	Enumerates the encoding types available for use with FormattedText.
`ExtractImageMode`	Controls how extractImage() enumerates images.
`FieldType`	AcroForm field types recognised by the FormEditor facade.
`FontStyle`	Enumerates predefined font names for use with FormattedText.
`ImageFormat`	Raster image formats supported by PdfConverter.
`KeySize`	Enumerates the legacy toolkit key-size options used by PdfFileSecurity.
`PasswordType`	Describes the role of a password used to open an encrypted document.
`Scope-facades`	Replacement scope.

Forms

Class	Description
`AppearanceCharacteristics`	Wrapper around the widget appearance-characteristics dictionary (`/MK`, ISO 32000-1:2008 §12.5.6.19).
`AppearanceDictionary`	Typed view over a form field’s `/AP` appearance dictionary (ISO 32000-1:2008 §12.5.5).
`ButtonField`	Push button field (/FT /Btn, push flag) (ISO 32000-1:2008, §12.7.4.2.2).
`CheckboxField`	Checkbox field (/FT /Btn) (ISO 32000-1:2008, §12.7.4.2.3).
`ComboBoxField`	Combo box / dropdown field (/FT /Ch, combo flag) (ISO 32000-1:2008, §12.7.4.4).
`Field-forms`	Abstract base for all form fields (ISO 32000-1:2008, §12.7.3).
`FieldAppearanceBuilder`	Builds Form-XObject `/AP/N` appearance streams for form fields (checkbox and radio-button options).
`FlattenSettings`	Settings that control how form fields are flattened into page content.
`Form-forms`	Represents the interactive form (AcroForm) of a PDF document (ISO 32000-1:2008, §12.7).
`ListBoxField`	List box field (/FT /Ch, no combo flag) (ISO 32000-1:2008, §12.7.4.4).
`Option`	A single option in a choice field (ComboBox/ListBox).
`OptionCollection`	Collection of options for choice fields (ComboBox/ListBox).
`PKCS1`	PKCS#1 RSA signature for PDF (ISO 32000-1:2008, §12.8.3.2).
`PKCS7`	PKCS#7 SHA-1 signature for PDF (ISO 32000-1:2008, §12.8.3.3.2).
`PKCS7Detached`	PKCS#7 detached signature for PDF (ISO 32000-1:2008, §12.8.3.3.1).
`RadioButtonField`	Radio button group (/FT /Btn, radio flag) (ISO 32000-1:2008, §12.7.4.2.3).
`RadioButtonOptionField`	A single option in a radio button group.
`Signature-forms`	Abstract base class for PDF digital signature types (ISO 32000-1:2008, §12.8).
`SignatureCustomAppearance`	Customizes the visual appearance of a digital signature field in a PDF document.
`SignatureField`	Signature field (/FT /Sig) (ISO 32000-1:2008, §12.7.4.5).
`TextBoxField`	Text input field (/FT /Tx) (ISO 32000-1:2008, §12.7.4.3).
`XfaForm`	Represents an XFA (XML Forms Architecture) form embedded in a PDF document.
`XfaNamespaceContext`	Namespace context for XFA XML documents.
`XfaPacketParser`	Thin backwards-compatible facade over the typed packet model (XfaPacketReader / XfaPacketSet / XfaPacketWriter).

Enumerations

Enumeration	Description
`BoxStyle`	Represents the style of a checkbox check mark.
`FormType`	Form type enumeration.

Html

Class	Description
`CssContext`	Cascading style context for HTML-to-PDF conversion.
`CssStyleParser`	Parses inline CSS style strings and applies them to a CssContext.
`HtmlTagParser`	Parses HTML (possibly malformed) into a DOM Document.
`HtmlToPdfConverter`	Converts HTML content to a PDF Document.
`PdfToHtmlConverter`	Converts a PDF Document to HTML markup.

Logicalstructure

Class	Description
`DivElement`	Represents a division (Div) grouping structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.2, Table 333).
`Element`	Abstract base class for typed structure elements in the logical structure tree (ISO 32000-1:2008, §14.7.2).
`ElementList`	Ordered list of child StructureElements within a structure tree node.
`FigureElement`	Represents a figure (Figure) illustration structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.5).
`FormElement`	Represents a form (Form) illustration structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.5).
`FormulaElement`	Represents a formula (Formula) illustration structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.5).
`HeaderElement`	Represents a header structure element (H, H1–H6) in the logical structure tree (ISO 32000-1:2008, §14.8.4.3, Table 334).
`LinkElement`	Represents a link (Link) inline structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.4, Table 338).
`ListElement`	Represents a list (L) structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.3, Table 336).
`ListLBodyElement`	Represents a list body (LBody) structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.3, Table 336).
`ListLIElement`	Represents a list item (LI) structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.3, Table 336).
`ListLblElement`	Represents a list label (Lbl) structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.3, Table 336).
`MarkedContentReference`	Marked content reference — links a structure element to marked content in a page’s content stream (ISO 32000-1:2008, §14.7.4.2).
`NoteElement`	Represents a note (Note) inline structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.4, Table 338).
`ObjectReference`	Object reference — links a structure element to a PDF object such as an annotation (ISO 32000-1:2008, §14.7.4.3).
`ParagraphElement`	Represents a paragraph (P) structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.3, Table 334).
`PartElement`	Represents a part (Part) grouping structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.2, Table 333).
`QuoteElement`	Represents a quote (Quote) inline structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.4, Table 338).
`RoleMap`	Maps custom structure type names to standard types (ISO 32000-1:2008, §14.7.3).
`SectElement`	Represents a section (Sect) grouping structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.2, Table 333).
`SpanElement`	Represents a span (Span) inline structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.4, Table 338).
`StructTreeRoot`	The root of the logical structure tree (ISO 32000-1:2008, §14.7.2, Table 322).
`StructureElement`	Represents a structure element in the logical structure tree (ISO 32000-1:2008, §14.7.2, Table 323).
`StructureTextState`	Represents text state settings for a structure element in a tagged PDF (ISO 32000-1:2008, §14.8.2.4).
`StructureTypeStandard`	Standard structure types for Tagged PDF (ISO 32000-1:2008, §14.8.4, Tables 333–338).
`TOCElement`	Represents a Table of Contents (TOC) structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.2, Table 333).
`TOCIElement`	Represents a Table of Contents Item (TOCI) structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.2, Table 333).
`TableElement`	Represents a table (Table) structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.4, Table 337).
`TableTBodyElement`	Represents a table body (TBody) structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.3, Table 337).
`TableTDElement`	Represents a table data cell (TD) structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.4, Table 337).
`TableTFootElement`	Represents a table footer (TFoot) structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.3, Table 337).
`TableTHElement`	Represents a table header cell (TH) structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.4, Table 337).
`TableTHeadElement`	Represents a table header (THead) structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.3, Table 337).
`TableTRElement`	Represents a table row (TR) structure element in the logical structure tree (ISO 32000-1:2008, §14.8.4.4, Table 337).

Operators

Class	Description
`BDC`	Begin marked content with properties operator (BDC).
`BI`	Begin inline image operator (BI).
`BMC`	Begin marked content operator (BMC).
`BT`	Begin text object operator (BT).
`BX`	Begin compatibility section operator (BX).
`BasicSetColorAndPatternOperator`	Abstract base class for set-color operators that support pattern color spaces (ISO 32000-1:2008, §8.6.8).
`BasicSetColorOperator`	Abstract base class for basic set-color operators (ISO 32000-1:2008, §8.6.8).
`BlockTextOperator`	Abstract base class for text block operators (ISO 32000-1:2008, §9.4).
`Clip`	Set clipping path operator (W) using the non-zero winding number rule.
`ClosePath`	Close subpath operator (h).
`ClosePathEOFillStroke`	Close, fill (even-odd), and stroke path operator (b*).
`ClosePathFillStroke`	Close, fill, and stroke path operator (b).
`ClosePathStroke`	Close and stroke path operator (s).
`ConcatenateMatrix`	Concatenate matrix operator (cm).
`CurveTo`	Cubic Bezier curve operator (c).
`CurveTo1`	Cubic Bezier curve operator with initial point replicated (v).
`CurveTo2`	Cubic Bezier curve operator with final point replicated (y).
`DP`	Marked content point with properties operator (DP).
`Do`	Invoke named XObject operator (Do).
`EI`	End inline image operator (EI).
`EMC`	End marked content operator (EMC).
`EOClip`	Set clipping path operator (W*) using the even-odd rule.
`EOFill`	Fill path operator (f*) using the even-odd rule.
`EOFillStroke`	Fill and stroke path operator (B*) using the even-odd rule.
`ET`	End text object operator (ET).
`EX`	End compatibility section operator (EX).
`EndPath`	End path operator (n) without filling or stroking.
`Fill-operators`	Fill path operator (f) using the non-zero winding number rule.
`FillStroke`	Fill and stroke path operator (B).
`GRestore`	Restore graphics state operator (Q).
`GS`	Set graphics state dictionary operator (gs).
`GSave`	Save graphics state operator (q).
`GlyphPosition`	Represents a single element in a TJ (show text with glyph positioning) array.
`ID`	Begin inline image data operator (ID).
`LineTo`	Line-to operator (l).
`MP`	Marked content point operator (MP).
`MoveTextPosition`	Move text position operator (Td).
`MoveTextPositionSetLeading`	Move text position and set leading operator (TD).
`MoveTo`	Move-to operator (m).
`MoveToNextLine`	Move to start of next text line operator (T*).
`MoveToNextLineShowText`	Move to next line and show text operator (’).
`ObsoleteFill`	Obsolete fill path operator (F).
`Re`	Rectangle operator (re).
`SelectFont`	Select font and size operator (Tf).
`SetAdvancedColor`	Set color for non-stroking operations with pattern support operator (scn).
`SetAdvancedColorStroke`	Set color for stroking operations with pattern support operator (SCN).
`SetCMYKColor`	Set CMYK color for non-stroking operations operator (k).
`SetCMYKColorStroke`	Set CMYK color for stroking operations operator (K).
`SetCharWidth`	Set char width operator for Type 3 fonts (d0).
`SetCharWidthBoundingBox`	Set char width and bounding box operator for Type 3 fonts (d1).
`SetCharacterSpacing`	Set character spacing operator (Tc).
`SetColor`	Set color for non-stroking operations operator (sc).
`SetColorOperator`	Abstract base class for all color-setting operators (ISO 32000-1:2008, §8.6.8).
`SetColorRenderingIntent`	Set color rendering intent operator (ri).
`SetColorSpace`	Set color space for non-stroking operations operator (cs).
`SetColorSpaceStroke`	Set color space for stroking operations operator (CS).
`SetColorStroke`	Set color for stroking operations operator (SC).
`SetDash`	Set dash pattern operator (d).
`SetFlat`	Set flatness tolerance operator (i).
`SetGlyphsPositionShowText`	Show text with glyph positioning operator (TJ).
`SetGray`	Set gray level for non-stroking operations operator (g).
`SetGrayStroke`	Set gray level for stroking operations operator (G).
`SetHorizontalTextScaling`	Set horizontal text scaling operator (Tz).
`SetLineCap`	Set line cap style operator (J).
`SetLineJoin`	Set line join style operator (j).
`SetLineWidth`	Set line width operator (w).
`SetMiterLimit`	Set miter limit operator (M).
`SetRGBColor`	Set RGB color for non-stroking operations operator (rg).
`SetRGBColorStroke`	Set RGB color for stroking operations operator (RG).
`SetSpacingMoveToNextLineShowText`	Set spacing, move to next line, and show text operator (").
`SetTextLeading`	Set text leading operator (TL).
`SetTextMatrix`	Set text matrix operator (Tm).
`SetTextRenderingMode`	Set text rendering mode operator (Tr).
`SetTextRise`	Set text rise operator (Ts).
`SetWordSpacing`	Set word spacing operator (Tw).
`ShFill`	Shading fill operator (sh).
`ShowText`	Show text operator (Tj).
`Stroke`	Stroke path operator (S).
`TextOperator`	Abstract base class for all text-related operators (ISO 32000-1:2008, §9).
`TextPlaceOperator`	Abstract base class for text positioning operators (ISO 32000-1:2008, §9.4.2).
`TextShowOperator`	Abstract base class for text showing operators (ISO 32000-1:2008, §9.4.3).
`TextStateOperator`	Abstract base class for text state operators (ISO 32000-1:2008, §9.3).

Interfaces

Interface	Description
`IOperatorSelector`	Visitor interface for traversing an `OperatorCollection`.

Optimization

Class	Description
`OptimizationOptions`	Options controlling optimizeResources(OptimizationOptions).

Printing

Class	Description
`PdfPrinterResolution`	Represents the resolution of a printer.
`PdfPrinterSettings`	Specifies information about how a document is printed, including the printer to use.
`PrintPageSettings`	Specifies settings that apply to a single printed page.
`PrintPaperSize`	Specifies the size of a piece of paper, with width and height in hundredths of an inch.
`PrintPaperSizes`	Standard paper sizes as pre-defined constants.
`PrinterMargins`	Specifies the margins of a printed page, in hundredths of an inch.

Enumerations

Enumeration	Description
`DuplexKind`	Specifies the duplex setting for a printer.
`PdfPrintRange`	Specifies the portion of the document to print.
`PdfPrinterResolutionKind`	Specifies a printer resolution kind.
`PrinterPaperKind`	Standard paper sizes.

Security

Class	Description
`EncryptionParameters`	Carries the low-level values used by a custom security handler.
`ValidationOptions`	Options for controlling PDF signature validation behavior.
`ValidationResult`	Contains the result of a PDF signature validation operation.

Interfaces

Interface	Description
`ICustomSecurityHandler`	Pluggable custom security handler compatible with Aspose-style document encryption extension points.

Enumerations

Enumeration	Description
`ValidationMethod`	Specifies the method used for signature validation.
`ValidationMode`	Specifies the mode used for certificate validation during signature verification.

Tagged

Class	Description
`AutoTaggingSettings`	Settings for automatic tagging of PDF document structure.
`HeaderElementTextConflictException`	Exception thrown when a header element’s text conflicts with the TOC page title.
`PositionSettings`	Position settings for tagged PDF structure elements.
`TOCpageHasNoTitleException`	Exception thrown when attempting to link a TOC page title to a header element, but the TOC page does not have a title set via `TocInfo`.
`TaggedContent`	Provides access to a document’s tagged (structured) content (ISO 32000-1:2008, §14.8).
`TaggedException`	Runtime exception thrown when tagged PDF validation rules are violated.

Interfaces

Interface	Description
`ITaggedContent`	Interface for accessing and modifying tagged (structured) content in a PDF document (ISO 32000-1:2008, §14.8).

Text

Class	Description
`AbsorbedCell`	A cell detected in a table during absorption.
`AbsorbedRow`	A row detected in a table during absorption.
`AbsorbedTable`	A table detected on a PDF page during absorption.
`ArabicShaper`	Clean-room contextual Arabic shaper: maps plain Arabic letters (U+0621–U+064A) to their Unicode Arabic Presentation Forms-B (U+FE70–U+FEFC) glyph variants — isolated, final, initial, medial — according to the cursive joining rules of the script.
`FolderFontSource`	Represents a folder containing font files as a font source.
`Font-text`	Represents a font used in PDF documents.
`FontRepository-text`	Provides access to system fonts and font lookup.
`FontSource`	Base class for font sources.
`FontStyles`	Font style flags (ISO 32000-1:2008, Table 122).
`FontSubstitution`	Base class for font substitution strategies.
`MarkupParagraph`	A paragraph detected during markup analysis of a PDF page.
`MarkupSection`	A section of a page containing paragraphs detected during markup analysis.
`PageMarkup`	Markup analysis result for a single page.
`ParagraphAbsorber`	Extracts paragraph structures from PDF pages by analyzing text fragment positions and line spacing.
`Position`	Represents a position on a PDF page (x, y coordinates in page space).
`RichTextFontStyles`	Defines bitmask constants for rich text font styles used in PDF annotations and form fields.
`SubstitutionFontCategories`	Defines font categories for system font substitution.
`SystemFontsSubstitution`	Represents a font substitution strategy that uses system fonts.
`TableAbsorber`	Extracts table structures from PDF pages by analyzing text positions and ruling lines to identify rows, columns, and cells.
`TextAbsorber`	Absorbs (extracts) all text from PDF pages.
`TextAnalyzer`	Chooses the more reliable textual representation between two candidate strings.
`TextBuilder`	Builds and appends text content to a PDF page by generating content stream operators.
`TextEditOptions`	Represents text edit options that describe how text-editing operations (font replacement, character substitution, language transformation and underline detection) are performed by TextFragmentAbsorber, TextSegment and the content-editing facades.
`TextExtractionOptions`	Options for text extraction from PDF pages.
`TextFormattingOptions`	Options for text formatting within paragraphs.
`TextFragment`	Represents a fragment of text extracted from a PDF page.
`TextFragmentAbsorber`	Absorbs text fragments matching a search phrase or regex from PDF pages.
`TextFragmentCollection`	A collection of TextFragments extracted from PDF pages.
`TextParagraph`	Represents a multi-line text paragraph that can be appended to a page via TextBuilder.
`TextReplaceOptions`	Options for text replacement operations in PDF documents.
`TextSearchOptions`	Options for text search operations.
`TextSegment`	Represents a segment of text with uniform formatting (same font, size, color).
`TextState`	Represents the graphical state of text (ISO 32000-1:2008, §9.3).

Enumerations

Enumeration	Description
`ClippingPathsProcessingMode`	Defines how clipping paths are processed for edited text.
`FontReplace`	Defines font replacement behavior performed during text-editing operations.
`FontTypes`	Font format hints used by InputStream, FontTypes).
`Language`	Supported analyzer languages.
`LanguageTransformation`	Defines the language transformation mode applied while showing/editing text.
`LineSpacingMode`	Line spacing mode for paragraph layout.
`NoCharacterAction`	Defines the action taken when the current font lacks a character required by an edit.
`ReplaceAdjustment`	Controls how the page content is adjusted after text replacement.
`Scope-text`	Controls the scope of text replacement.
`TextFormattingMode`	Text formatting modes for extraction.
`TextStyle`	Supported analyzer styles.
`WordWrapMode`	Word wrapping mode for paragraph layout.

Aspose.PDF FOSS for Java

Core API

Interfaces

Enumerations

Annotations

Enumerations

Devices

Enumerations

Drawing

Enumerations

Engine

Interfaces

Enumerations

Facades

Enumerations

Forms

Enumerations

Html

Logicalstructure

Operators

Interfaces

Optimization

Printing

Enumerations

Security

Interfaces

Enumerations

Tagged

Interfaces

Text

Enumerations

See Also