public class TextFormattingSearchCriteria : SearchCriteria

Public Class TextFormattingSearchCriteria
	Inherits SearchCriteria

public ref class TextFormattingSearchCriteria : public SearchCriteria

type TextFormattingSearchCriteria =  
    class
        inherit SearchCriteria
    end

using (Watermarker watermarker = new Watermarker(@"D:\test.doc"))
{
    TextFormattingSearchCriteria criteria = new TextFormattingSearchCriteria();
    criteria.ForegroundColorRange = new ColorRange();
    criteria.ForegroundColorRange.MinHue = -5;
    criteria.ForegroundColorRange.MaxHue = 10;
    criteria.ForegroundColorRange.MinBrightness = 0.01f;
    criteria.ForegroundColorRange.MaxBrightness = 0.99f;
    criteria.BackgroundColorRange = new ColorRange();
    criteria.BackgroundColorRange.IsEmpty = true;
    criteria.FontName = "Arial";
    criteria.MinFontSize = 19;
    criteria.MaxFontSize = 42;
    criteria.FontBold = true;

    PossibleWatermarkCollection watermarks = watermarker.Search(criteria);
    watermarks.Clear();
    watermarker.Save();
}