Support for PDF Document Annotations
The PDF Viewer control can display existing supported annotations in a PDF document.
Supported Annotation Types
- Caret
- The caret annotation[1] indicates modified text.
- File Attachment
Associates an attached file with a specific position in a document. A right-click on a file attachment displays a context menu with Open File and Save Embedded File to Disk items.
- Free Text Annotation
- A static text box.
- Graphic Annotations
- Include Line, Square, Circle, Polygon, Polyline, and Ink[1] (freehand drawing imitation) shapes.
- Stamp
- Imitates a rubber stamp[1] designed to mark pages.
- Sticky Note
- A comment annotation. Users can hover the mouse pointer over a comment to display its content in a hint.
- Text Markup
- Includes highlight, underline, strikeout, and squiggly-underline effects.
Annotation Interactivity
The OptionsSelection.Annotations property enables (default) or allows you to disable end-user interaction options for PDF annotations (hints, context menus, etc.)
Important Limitations
- The PDF Viewer control does not allow you to create new or modify existing PDF annotations. Users can only view and interact with existing annotations.
- Support for rubber stamp, caret, and ink annotations is limited.