HeaderHandler : IEventHandler{
  public bool PageReset { get; set; }
        public Table Table { get; set; }
        public Image HeaderImg { get; set; }

        public void HandleEvent(Event @event)
        {
            PdfDocumentEvent docEvent = (PdfDocumentEvent)@event;
            PdfDocument pdfDoc = docEvent.GetDocument();
            var vcdoc =(VCPdfDocument) pdfDoc;
            PdfPage page = docEvent.GetPage();

            vcdoc.RowCount = 1;
}

var headerHandler = new HeaderHandler();
pdf.AddEventHandler(PdfDocumentEvent.START_PAGE, headerHandler);
foreach (var item in list)
                {
                    contentTable.AddCell(new Cell().Add(new Paragraph(string.Format("{0}.", pdf.RowCount)).SetFont(bold).SetFontSize(10)).SetBorder(Border.NO_BORDER).SetMarginBottom(0.1f).SetVerticalAlignment(VerticalAlignment.MIDDLE));
 pdf.RowCount++;
}
pdf.AddCell(contentTable);
 document.Close();