public void Setup() { //System.IO.File.Copy(_fileNameSorgente, _fileNameDestinazione); _reader = new PdfReader(_fileNameSorgente); _stamper = new PdfStamper(_reader, new FileOutputStream(_fileNameDestinazione, true)); if (_reader.isEncrypted()) { System.Diagnostics.Debug.Print(PdfEncryptor.getPermissionsVerbose(_reader.getPermissions())); } _stamper.setEncryption(new byte[] { }, new byte[] { }, PdfWriter.AllowPrinting | PdfWriter.AllowCopy | PdfWriter.AllowModifyContents | PdfWriter.AllowAssembly | PdfWriter.AllowDegradedPrinting | PdfWriter.AllowModifyAnnotations | PdfWriter.AllowFillIn | PdfWriter.AllowScreenReaders, PdfWriter.STRENGTH128BITS); _form = _stamper.getAcroFields(); _hTable = new Hashtable(); }