System.Object
   C1.Xaml.Pdf.C1PdfDocumentBase
      C1.Xaml.Pdf.C1PdfDocument
   C1.Xaml.Pdf.Font
   C1.Xaml.Pdf.PdfDocumentInfo
   C1.Xaml.Pdf.PdfFieldBase
      C1.Xaml.Pdf.PdfPushButton
      C1.Xaml.Pdf.PdfRadioCheckBase
         C1.Xaml.Pdf.PdfCheckBox
         C1.Xaml.Pdf.PdfRadioButton
      C1.Xaml.Pdf.PdfTextFieldBase
         C1.Xaml.Pdf.PdfComboListBase
            C1.Xaml.Pdf.PdfComboBox
            C1.Xaml.Pdf.PdfListBox
         C1.Xaml.Pdf.PdfTextBox
   C1.Xaml.Pdf.PdfNoteBase
      C1.Xaml.Pdf.PdfLineNote
      C1.Xaml.Pdf.PdfRectNote
         C1.Xaml.Pdf.PdfSquareNote
            C1.Xaml.Pdf.PdfCircleNote
         C1.Xaml.Pdf.PdfTextNote
   C1.Xaml.Pdf.PdfPushButton.Action
   C1.Xaml.Pdf.PdfPushButton.ActionCollection
   C1.Xaml.Pdf.PdfSecurity
   C1.Xaml.Pdf.PdfViewerPreferences
   C1.Xaml.Pdf.Pen
   C1.Xaml.Pdf.Reader.PdfObjectWrapper
      C1.Xaml.Pdf.PdfPage
   C1.Xaml.Pdf.StringFormat
   C1.Xaml.Pdf.Strings
   C1.Xaml.Pdf.Strings.Errors
   System.Collections.Generic.List<T>
      C1.Xaml.Pdf.PdfPageCollection
   System.EventArgs
      C1.Xaml.Pdf.C1PdfDocumentBase.ProgressChangedEventArgs
      C1.Xaml.Pdf.DrawingElementEventArgs

Reference

C1.UWP.Pdf Assembly