How to Add Page number in Footer in PDF by Itextsharp

Question

I am using iTextSharp DLL in ASP.NET code. I am fetching a data into dataset and Add the dataset into PDF table.

If my dataset have more 100 rows then 100 rows will

Answer 1

Here is another approach, make templates on each page and then at onCloseDocument update those templates look at the code below I am using iTextSharp 7

 class PDFBackgroundHelper : PdfPageEventHelper
{

    private PdfContentByte cb;
    private List templates;
    //constructor
    public PDFBackgroundHelper()
    {
        this.templates = new List();
    }

    public override void OnEndPage(PdfWriter writer, Document document)
    {
        base.OnEndPage(writer, document);

        cb = writer.DirectContentUnder;
        PdfTemplate templateM = cb.CreateTemplate(50, 50);
        templates.Add(templateM);

        int pageN = writer.CurrentPageNumber;
        String pageText = "Page " + pageN.ToString() +" of ";
        BaseFont bf = BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
        float len = bf.GetWidthPoint(pageText, 10);
        cb.BeginText();
        cb.SetFontAndSize(bf, 10);
        cb.SetTextMatrix(document.LeftMargin, document.PageSize.GetBottom(document.BottomMargin));
        cb.ShowText(pageText);
        cb.EndText();
        cb.AddTemplate(templateM, document.LeftMargin + len, document.PageSize.GetBottom(document.BottomMargin));
    }

    public override void OnCloseDocument(PdfWriter writer, Document document)
    {
        base.OnCloseDocument(writer, document);
        BaseFont bf = BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
        foreach (PdfTemplate item in templates)
        {
            item.BeginText();
            item.SetFontAndSize(bf, 10);
            item.SetTextMatrix(0, 0);
            item.ShowText("" + (writer.PageNumber));
            item.EndText();
        }

    }