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How to use iTextSharp add an image to exist PDF and not replace original content? RRS feed

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    I want to add a new image to exist PDF, and not new PDF.

    I try to use iTextSharp.dll, and I found it was create new PDF and add image, but I want to add image to exist PDF and not create new PDF.

    and I had some code, you can refer to:

    string imagePath = "image";

    PdfReader reader = new PdfReader(@"C:\Users\Desktop\PDF.pdf");

    int n = reader.NumberOfPages; 

    iTextSharp.text.Rectangle psize = reader.GetPageSize(1);    

    float width = psize.Width;            

    float height = psize.Height;                        

    Document document = new Document(psize, 50, 50, 50, 50); 

    PdfWriter writer = PdfWriter.GetInstance(document,new FileStream(filename, FileMode.Append));            

    document.Open();            

    iTextSharp.text.Image img = iTextSharp.text.Image.GetInstance(imagePath);      

    img.SetAbsolutePosition(440, 800);            

    writer.DirectContent.AddImage(img);      

    document.Close();

    If you have some way to realize the goal, can you help me resolve this question?

    Thursday, March 26, 2015 4:48 PM

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    You can try Spire.PDF for .NET. download and add dll to your project,you can also set  size, transparency and insert place for your image.

    //Create a pdf document.
            PdfDocument doc = new PdfDocument();
            doc.LoadFromFile(@"sample.pdf");
            //get the page
            PdfPageBase page = doc.Pages[0];

            //get the image
            PdfImage image = PdfImage.FromFile(@"sample.jpg");
            float width = image.Width * 0.75f;
            float height = image.Height * 0.75f;
            float x = (page.Canvas.ClientSize.Width - width) / 2;

            // insert image

            page.Canvas.DrawImage(image, x, 60, width, height);

            //Save pdf file.
            doc.SaveToFile("Sample.pdf");
            doc.Close();

            //Launching the Pdf file.
            System.Diagnostics.Process.Start("Sample.pdf");
            Console.ReadKey();

    • Marked as answer by guangwen.gao Wednesday, April 1, 2015 12:15 PM
    Friday, March 27, 2015 2:53 AM

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     Document doc = new Document(PageSize.A4, 10f, 10f, 100f, 0f);

        string pdfFilePath = Server.MapPath(".") + "/PDFFiles";      

        PdfWriter writer = PdfAWriter.GetInstance(doc, new FileStream(pdfFilePath + "/Default.pdf", FileMode.Create));

        doc.Open();

        try

        {

            Paragraph paragraph = new Paragraph("Getting Started ITextSharp.");

            string imageURL = Server.MapPath(".") + "/image2.jpg";

            iTextSharp.text.Image jpg = iTextSharp.text.Image.GetInstance(imageURL);

            //Resize image depend upon your need

            jpg.ScaleToFit(140f, 120f);

            //Give space before image

            jpg.SpacingBefore = 10f;

            //Give some space after the image

            jpg.SpacingAfter = 1f;

            jpg.Alignment = Element.ALIGN_LEFT;

 

            doc.Add(paragraph);

            doc.Add(jpg);

    Thursday, March 26, 2015 5:40 PM
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    You can try Spire.PDF for .NET. download and add dll to your project,you can also set  size, transparency and insert place for your image.

    //Create a pdf document.
            PdfDocument doc = new PdfDocument();
            doc.LoadFromFile(@"sample.pdf");
            //get the page
            PdfPageBase page = doc.Pages[0];

            //get the image
            PdfImage image = PdfImage.FromFile(@"sample.jpg");
            float width = image.Width * 0.75f;
            float height = image.Height * 0.75f;
            float x = (page.Canvas.ClientSize.Width - width) / 2;

            // insert image

            page.Canvas.DrawImage(image, x, 60, width, height);

            //Save pdf file.
            doc.SaveToFile("Sample.pdf");
            doc.Close();

            //Launching the Pdf file.
            System.Diagnostics.Process.Start("Sample.pdf");
            Console.ReadKey();

    • Marked as answer by guangwen.gao Wednesday, April 1, 2015 12:15 PM
    Friday, March 27, 2015 2:53 AM
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    Hi,

    iText is a third party library to create PDF  originally written for java. iTextSharp is the C# adaptation of that
    library. Question regarding iText are better asked on the iText forum, rather than the Microsoft Forum:

    http://itextpdf.com/support

    Thanks for your understanding.

    Best regards,

    Kristin

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    Friday, March 27, 2015 8:35 AM
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    Thank you for your answer.

    I am sorry too late to reply. and these days I worked on some other project.

    at last, thank you very much.   And my points is zero, if I have some points, I will give it to you.

    Best regards.

    Wednesday, April 1, 2015 12:18 PM