iTextSharp.text.pdf.AcroFields.GetBlankSignatureNames C# (CSharp) Метод

        public ArrayList GetBlankSignatureNames() {
            FindSignatureNames();
            ArrayList sigs = new ArrayList();
            foreach (DictionaryEntry entry in fields) {
                Item item = (Item)entry.Value;
                PdfDictionary merged = item.GetMerged(0);
                if (!PdfName.SIG.Equals(merged.GetAsName(PdfName.FT)))
                    continue;
                if (sigNames.ContainsKey(entry.Key))
                    continue;
                sigs.Add(entry.Key);
            }
            return sigs;
        }