C# to fill PDF form from a Given DataTable

gistfile1.cs

/*
 This is utilizing iTextSharp for the PdfReader, PdfStamper and AcroFields classes.
*/
DataTable dt = new DataTable();/* fill the DT however you please */
String pdfTemplate = "PATH_TO_PDF_FORM";

System.IO.MemoryStream m = new System.IO.MemoryStream();
PdfReader pdfReader = new PdfReader(pdfTemplate);
PdfStamper pdfStamper = new PdfStamper(pdfReader, m);

AcroFields testForm = pdfStamper.AcroFields;
foreach (DataColumn column in dt.Columns)
{
    try
    {
      /*SetField does not validate the passed field exists in the form. Therefore, we can pass all fields
       in the DataTable and those matching form field name, will be filled. 
        
      */
      if (column.DataType.ToString() == "System.DateTime")
      {
        //Arbitrariliy formatting DateTimes in this fashion
          DateTime tmpDate = (DateTime)dt.Rows[0][column.ColumnName];
          testForm.SetField(column.ColumnName, tmpDate.ToShortDateString());
      }
      else
        testForm.SetField(column.ColumnName, cleanString(dt.Rows[0][column.ColumnName].ToString())); 
    }
    catch (Exception ex)
    {
    }
}

try
{
  //Explicitly set a column called "Date" to the current date
    testForm.SetField("Date", DateTime.Today.ToShortDateString());
}
catch (Exception ex)
{
    Console.WriteLine("Exception in setting form fields: " + ex.Message);
}

pdfStamper.Close();
pdfReader.Close();

/* Now do something with the MemoryStream, as you'd like */