private EnvelopeDefinition buildEnvelopeDefinition(DocumentGroup documentGroup) {
    return new EnvelopeDefinition()
        .recipients(fromRecipients(documentGroup.getSignatories(), documentGroup.getCcRecipients())) // setting recipients
        .emailSubject("email subject")
        .documents(fromDocuments(documentGroup.getDocuments())) // creating documents on the envelope
        .status("sent");
}

private static List<com.docusign.esign.model.Document> fromDocuments(List<Document> documents) {
    return IntStream.range(0, documents.size()).mapToObj(documentIndex -> {
      Document document = documents.get(documentIndex);
      return new com.docusign.esign.model.Document()
          .documentId(Integer.toString(documentIndex + 1))
          .name(document.getName())
          .documentBase64(new String(Base64.encode(document.getContent())))
          .fileExtension(document.getType())
          .transformPdfFields("true"); // setting the transformPdfFields to true per document
    }).collect(Collectors.toList());
}

private static Recipients fromRecipients(List<Recipient> signatories, List<Recipient> cc) {
    Recipients recipients = new Recipients();
    List<Signer> signatoryList = new ArrayList<>();
    List<CarbonCopy> copyList = new ArrayList<>();

    int recipientCount = 1;
    for (Recipient r : signatories) {
      Signer signer = new Signer();
      signer.setEmail(r.getEmail());
      signer.setName(r.getName());
      signer.setRoleName("signer");
      signer.setRecipientId(Integer.toString(recipientCount));
      signer.setRoutingOrder(Integer.toString(recipientCount));

      SignHere signHere = new SignHere();
//      signHere.setTabLabel("DocuSignSignHere");
      signHere.setTabLabel("DocuSignSignHere " + recipientCount);

      Tabs signerTabs = new Tabs();
      signerTabs.setSignHereTabs(Arrays.asList(signHere));
      signer.setTabs(signerTabs);

      signatoryList.add(signer);
      recipientCount++;
    }

    for (Recipient r : cc) {
      CarbonCopy c = new CarbonCopy();
      c.setEmail(r.getEmail());
      c.setName(r.getName());
      c.setRoleName("cc");
      c.setRecipientId(Integer.toString(recipientCount));
      c.setRoutingOrder(Integer.toString(recipientCount));
      copyList.add(c);
      recipientCount++;
    }

    recipients.setSigners(signatoryList);
    recipients.setCarbonCopies(copyList);
    return recipients;
  }