protected void ManipulatePdf(String dest)
{
PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC), new PdfWriter(dest));
PdfAcroForm form = PdfAcroForm.GetAcroForm(pdfDoc, true);
// Method removes the XFA stream from the document.
form.RemoveXfaForm();
IDictionary <String, PdfFormField> fields = form.GetFormFields();
foreach (KeyValuePair <String, PdfFormField> name in fields)
{
if (name.Key.IndexOf("Total") > 0)
{
name.Value.SetColor(ColorConstants.RED);
}
name.Value.SetValue("X");
}
pdfDoc.Close();
}