2021.1

var templateId = $("#template").val();
/* Create Preview PDF (By Data) (JSON) */
$.ajax({
type: "POST",
url:
"/rest/serverengine/workflow/contentcreation/pdfpreview/" +
templateId,
data: JSON.stringify({ data: jsonData }),
contentType: "application/json"
})
.done(function (response, status, request) {
c.displayStatus("Request Successful");
c.displayResult("Managed File ID", response);
})
.fail(c.displayDefaultFailure);
});
});
}(jQuery, Common));
Screenshot & Output
Page 297