Outline

public bool Outline { get; set; }

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

// Set the Outline flag to change the text's fill color to white and
// leave a thin outline around each character in the original color of the text. 
builder.Font.Outline = true;
builder.Font.Color = Color.Blue;
builder.Font.Size = 36;

builder.Writeln("This text has an outline.");

doc.Save(ArtifactsDir + "Font.Outline.docx");