System.Object
GrapeCity.Documents.Pdf.Recognition.Structure.ContentItemBase
GrapeCity.Documents.Pdf.Recognition.Structure.ContentItem
GrapeCity.Documents.Pdf.Recognition.Structure.McidContentItem
GrapeCity.Documents.Pdf.Recognition.Structure.McrContentItem
GrapeCity.Documents.Pdf.Recognition.Structure.ObjrContentItem
GrapeCity.Documents.Pdf.Recognition.Structure.Element
GrapeCity.Documents.Pdf.Recognition.Structure.LogicalStructure