| Class | Description | |
|---|---|---|
 | AnnotationBase | The abstract base class for all PDF annotation types. |
| Appearance | Represents the appearance of an annotation in normal, rollover and down states.
In the simplest case the appearance can be defined by a single GrapeCity.Documents.Pdf.Graphics.FormXObject specified by the Default property. In more complex cases it can be defined as a subdictionary specified by the Item property. For example, an annotation representing an interactive check box might have two appearance states named On and Off. See PDF specification for details. |
| AppearanceStreams | Represents a PDF Appearance Streams object. |
| Border | Defines properties of the annotation's border. |
| BorderEffect | Represents an effect to be applied to the border of an annotations. |
| ButtonAppearance | Represents the appearance of a WidgetAnnotation when it is linked with a pushbutton or a signature field. |
| CaretAnnotation | Represents a caret annotation, shown in a PDF as a visual symbol that indicates the presence of text edits. |
| CircleAnnotation | Represents a circle annotation, which displays a circle on a page. When opened, they display a pop-up window containing the text of the associated note. |
| DefaultAppearance | Represents the default appearance of an annotation. |
| FileAttachmentAnnotation | Represents a reference to a file which typically is embedded in the PDF file. |
| FreeTextAnnotation | Represents a free text annotation that displays text directly on a page. Unlike an ordinary text annotation (see TextAnnotation), a free text annotation has no open or closed state. Instead of being displayed in a pop-up window, the text is always visible. |
| ImageScale | Represents image alignment within a rectangle. |
| InkAnnotation | Represents a line annotation, that displays a single straight line on a page. When opened, it displays a pop-up window containing the text of the associated note. |
| LineAnnotation | Represents a line annotation, that displays a single straight line on a page. When opened, it displays a pop-up window containing the text of the associated note. |
| LinkAnnotation | Represents a hypertext link. |
| MarkupAnnotation | The abstract base class for annotations that are used primarily to mark up PDF documents. |
| PolygonAnnotation | Represents a polygon annotation that displays a polygon on a page. When opened, it displays a pop-up window containing the text of the associated note. |
| PolygonAnnotationBase | Base class for PolygonAnnotation and PolyLineAnnotation. |
| PolyLineAnnotation | Represents a polyline annotation. When opened, it displays a pop-up window containing the text of the associated note. |
| PopupAnnotation | The base class for annotations which are used primarily to mark up PDF documents. |
| RedactAnnotation | Represents a redact annotation used to mark areas containing information that needs to be erased from the document. Note that redact annotations must be explicitly applied (with a call to the GrapeCity.Documents.Pdf.GcPdfDocument.Redact method or one of its overloads) to actually remove the information marked for redaction from the document. |
| RichMediaAnnotation | Represents a rich media annotation. Rich media annotations provide a common framework for video, audio, animations and other multimedia presentations. |
| RichMediaAnnotationActivation | Specifies the activation conditions of a RichMediaAnnotation. |
| RichMediaAnnotationDeactivation | Specifies the deactivation conditions of a RichMediaAnnotation. |
| RichMediaAnnotationPresentationStyle | Defines possible values for RichMediaAnnotation.PresentationStyle. |
| SoundAnnotation | The SoundAnnotation is analogous to a text annotation except that instead of a text note, it contains sound recorded from the computer’s microphone or imported from a file. |
| SoundAnnotationIcon | Specifies the predefined icons used by SoundAnnotation. |
| SquareAnnotation | Represents a square annotation which displays a rectangle on a page. When opened, a square annotation displays a pop-up window containing the text of the associated note. |
| StampAnnotation | Represents an annotation that displays text or graphics intended to look as if they were stamped on the page with a rubber stamp. |
| StateAppearance | Represents the appearance attributes for a ButtonAppearance used when the state of a button field is changed: user presses the button, mouse is over the button. |
| TextAnnotation | Represents a sticky note attached to a point in a PDF document. |
| TextMarkupAnnotation | TextMarkupAnnotation appear as highlights, underlines, strikeouts, or jagged (“squiggly”) underlines in the text of a document. |
| UnknownAnnotation | Represents an annotation of a type that is not currently supported by GcPdf.
An instance of this type cannot be created by user code. Instances of this type will be created if a PDF containing annotations of unsupported types is loaded into a GrapeCity.Documents.Pdf.GcPdfDocument. |
| WatermarkAnnotation | Defines a graphics that are expected to be printed at a fixed size and position on a page, regardless of the dimensions of the printed page. |
| WidgetAnnotation | Represents a widget annotation used in interactive forms to represent the appearance of fields and to manage user interactions. |
| WidgetAnnotation.TriggerEvents | Defines events common for all acroform fields. |
