Support for PDF Document Annotations
The PDF Viewer control can show only visible markup annotations. In the following image, the current page contains two annotations: a file attachment and a free text annotation.
Supported markup annotation types include:
Free text.
Text markup (that is, highlight, underline, strikeout, and squiggly-underline).
Square and circle.
Line, polygon, and polyline.
File attachment.
A file attachment annotation allows you to open or save a copy of the attachment associated with a specific page.
You can manage the annotation accessibility via the control’s OptionsSelection.Annotations property.
Note
The VCL PDF Viewer also provides limited support for rubber stamp, caret, and ink annotations.