Gets or sets a color which is used to highlight form fields in a PDF document.
public Color HighlightedFormFieldColor { get; set; }
Public Property HighlightedFormFieldColor As Color
To provide highlighted form fields in a PDF document, set the HighlightFormFields property to true.
The following image demonstrates the HighlightedFormFieldColor property set to Color.FromArgb(120, 255, 0, 0)