iTextSharp.text.pdf.PdfCopyFieldsImp.CreateAcroForms C# (CSharp) Метод

        protected void CreateAcroForms()
        {
            if (fieldTree.Count == 0)
                return;
            form = new PdfDictionary();
            form.Put(PdfName.DR, resources);
            Propagate(resources, null, false);
            form.Put(PdfName.DA, new PdfString("/Helv 0 Tf 0 g "));
            tabOrder = new Dictionary<PdfArray,List<int>>();
            calculationOrderRefs = new List<object>();
            foreach (string sc in calculationOrder)
                calculationOrderRefs.Add(sc);
            form.Put(PdfName.FIELDS, BranchForm(fieldTree, null, ""));
            if (hasSignature)
                form.Put(PdfName.SIGFLAGS, new PdfNumber(3));
            PdfArray co = new PdfArray();
            for (int k = 0; k < calculationOrderRefs.Count; ++k) {
                Object obj = calculationOrderRefs[k];
                if (obj is PdfIndirectReference)
                    co.Add((PdfIndirectReference)obj);
            }
            if (co.Size > 0)
                form.Put(PdfName.CO, co);
        }