- u -

• Underline : PdfSharp.Drawing.XFont
• UnfilteredValue : PdfSharp.Pdf.PdfDictionary.PdfStream
• Unicode : PdfSharp.Drawing.XPdfFontOptions
• UnitsPerEm : PdfSharp.Drawing.XFontMetrics
• UserPassword : PdfSharp.Pdf.Security.PdfSecuritySettings , PdfSharp.Pdf.Security.PdfStandardSecurityHandler