This class represents the free text annotation. This is definitively detailed in:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 174, page 396.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 177, page 480.

This class is always an indirect object because it inherits from MarkupAnnotationElement which is always an indirect object.

System.Object
    WebSupergoo.ABCpdf14.Elements.Element
       WebSupergoo.ABCpdf14.Elements.AnnotationElement
          WebSupergoo.ABCpdf14.Elements.MarkupAnnotationElement
             WebSupergoo.ABCpdf14.Elements.FreeTextAnnotationElement

A free-text annotation displays text directly on the page at a specified location without an icon or separate pop-up window. The text is rendered using the default appearance string in the DA entry.

The Q entry controls text alignment. The CL entry supplies callout line coordinates. The LE entry specifies line-end styles for the callout, and RD insets the text bounding box from the outer Rect.

The IT entry classifies the annotation as a plain free-text annotation, a callout, or a typewriter annotation.