Merge Fields in PDF using XML and itextsharp

Dec 25 2013 3:41 PM

Hi all,

I'm posting here to ask for a huge help from you..

I need to accomplish a task and I'm having some problems..

I need to implement a method to merge fields in a PDF with forms created in Adobe Life Cycle.

I'll receive the template PDF and a XML to populate the PDF and need to return the new filled file.

The xml is something like this:

<?xml version="1.0" encoding="UTF-8"?>
<form1>
   <ReportDescription>
         <body xmlns="http://www.w3.org/1999/xhtml" xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/">
             <p><span style="font:Arial bold 12px">Name of the document</span></p>
         </body>
   </ReportDescription>
   <ReportCode>GEP-DO-PA-XX-000</ReportCode>
   <Contents>
      <UserData>
              <UserName>Ego ille</UserName>
              <UserPhone>Si manu vacuas</UserPhone>
        <UserNIF>999999999</UserNIF>
      </UserData>
   </Contents>
</form1>

So, I have something like the following:

private MemoryStream GeneratePDF(string m_FormName, XmlDocument oData)
        {
            PdfReader pdfTemplate;
            PdfStamper stamper;
            PdfReader tempPDF;
            Document doc;
            MemoryStream msTemp;
            PdfWriter pCopy;
            MemoryStream msOutput = new MemoryStream();

            pdfTemplate = new PdfReader(m_FormName);

            doc = new Document();
            pCopy = new PdfCopy(doc, msOutput);

            pCopy.AddViewerPreference(PdfName.PICKTRAYBYPDFSIZE, new PdfBoolean(true));
            pCopy.AddViewerPreference(PdfName.PRINTSCALING, PdfName.NONE);

            doc.Open();

            for (int i = 1; i < pdfTemplate.NumberOfPages + 1; i++)
            {
                msTemp = new MemoryStream();
                pdfTemplate = new PdfReader(m_FormName);

                stamper = new PdfStamper(pdfTemplate, msTemp);

                // map xml values to pdf form controls (element name = control name)
                foreach (XmlElement oElem in oData.SelectNodes("/form1/*"))
                {
                    stamper.AcroFields.SetField(oElem.Name, oElem.InnerText);
                }

                stamper.FormFlattening = true;
                stamper.Close();
                tempPDF = new PdfReader(msTemp.ToArray());
                ((PdfCopy)pCopy).AddPage(pCopy.GetImportedPage(tempPDF, i));
                pCopy.FreeReader(tempPDF);

            }
            doc.Close();

            return msOutput;
        }

Hope someone can help me.

Kind Regards,

Answers (4)

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