adding page number to pdf using itextsharp

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C#

void addnumber()
        {
           
            PdfReader rd = new PdfReader("bill3.pdf");
            PdfStamper ps = new PdfStamper(rd, new FileStream("sunil1.pdf", FileMode.Create));
           
            PdfImportedPage page;
            for (int i = 1; i <= rd.NumberOfPages; i++)
            {
                PdfContentByte canvas = ps.GetOverContent(i);
                page = ps.GetImportedPage(rd, i);
                BaseFont bf =        BaseFont.CreateFont(BaseFont.HELVETICA,BaseFont.CP1252,BaseFont.NOT_EMBEDDED);
                canvas.SetColorFill(BaseColor.DARK_GRAY);
                canvas.BeginText();
                canvas.SetFontAndSize(bf, 6);
                
                canvas.ShowTextAligned(PdfContentByte.ALIGN_LEFT, "page number "+i, 300.7f, 60.7f, 0);
                canvas.EndText();
                canvas.AddTemplate(page, 0, 0);
                
            }
            
           
        }

While i open the pdf file which is created that is sunil1.pdf then i got an error message that the file is damaged and could not repaired.

Posted 17-Aug-15 23:03pm

Sunil Kumar Das

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DamithSL · Accepted Answer · 2015-08-17T23:19:00

try as below

C#

AddPageNumber("bill3.pdf","sunil1.pdf");

C#

void AddPageNumber(string fileIn, string fileOut)
{
    byte[] bytes = File.ReadAllBytes(fileIn);
    Font blackFont = FontFactory.GetFont("Arial", 12, Font.NORMAL, BaseColor.BLACK);
    using (MemoryStream stream = new MemoryStream())
    {
        PdfReader reader = new PdfReader(bytes);
        using (PdfStamper stamper = new PdfStamper(reader, stream))
        {
            int pages = reader.NumberOfPages;
            for (int i = 1; i <= pages; i++)
            {
                ColumnText.ShowTextAligned(stamper.GetUnderContent(i), Element.ALIGN_RIGHT, new Phrase(i.ToString(), blackFont), 568f, 15f, 0);
            }
        }
        bytes = stream.ToArray();
    }
    File.WriteAllBytes(fileOut, bytes);
}

Abhinav S · Accepted Answer · 2015-08-17T23:15:00

Solution 1

Try these links first -

iTextSharp: Add Page numbers to existing PDF using C# and VB.Net [^]
iTextSharp–Add header/footer to PDF[^]

Posted 17-Aug-15 23:15pm

Abhinav S