public async Task <IActionResult> ClearImage()
        {
            if (_penConnector != null)
            {
                _penConnector.ClearSignature();
                _penConnector.ClearImage();
            }

            var            id    = Request.Path.ToString().Substring(Request.Path.ToString().LastIndexOf('/') + 1);
            AdminViewModel model = await DocumentDBRepository <AdminViewModel> .GetItemAsync(id);

            ViewBag.pdfURL  = GetBlobSasUri(model.DocGuid);
            ViewBag.Id      = model.Id;
            ViewBag.DocName = model.DocName;

            return(View("Client"));
        }