test.ts

saveValues() {

  var documentValidated = TXDocumentViewer.forms.validate();

  if (!documentValidated) {
    alert('Document is not valid!');
    return;
  }

  var formFieldValues = TXDocumentViewer.forms.getValues();

  console.log(formFieldValues);

  this.http.post('/document/saveValues', formFieldValues).subscribe(
    (result) => {
      console.log(result);
    }
  );
}