diff --git a/src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/GeoportalDataViewerService.java b/src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/GeoportalDataViewerService.java
index a6c1a00..b15ff1a 100644
--- a/src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/GeoportalDataViewerService.java
+++ b/src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/GeoportalDataViewerService.java
@@ -57,8 +57,8 @@ public interface GeoportalDataViewerService extends RemoteService {
 	 * @return the data result
 	 * @throws Exception the exception
 	 */
-	List<GeoportalSpatialQueryResult> getDataResult(List<LayerObject> layerObjects, String mapSrsName, BoundsMap mapBBOX,
-			int maxWFSFeature, double zoomLevel) throws Exception;
+	List<GeoportalSpatialQueryResult> getDataResult(List<LayerObject> layerObjects, String mapSrsName,
+			BoundsMap mapBBOX, int maxWFSFeature, double zoomLevel) throws Exception;
 
 	/**
 	 * Gets the my login.
@@ -231,7 +231,4 @@ public interface GeoportalDataViewerService extends RemoteService {
 
 	Boolean checkExportAsPDFConfig();
 
-//	String exportAsPDF(String profileID, String projectID, String profileTitle,
-//			GeoportalItemReferences geoportalItemReferences);
-
 }
diff --git a/src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/GeoportalDataViewerServiceAsync.java b/src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/GeoportalDataViewerServiceAsync.java
index 9de222c..a6efc52 100644
--- a/src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/GeoportalDataViewerServiceAsync.java
+++ b/src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/GeoportalDataViewerServiceAsync.java
@@ -95,7 +95,4 @@ public interface GeoportalDataViewerServiceAsync {
 
 	void checkExportAsPDFConfig(AsyncCallback<Boolean> callback);
 
-//	void exportAsPDF(String profileID, String projectID, String profileTitle,
-//			GeoportalItemReferences geoportalItemReferences, AsyncCallback<String> callback);
-
 }
diff --git a/src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/ui/cms/project/ProjectViewer.java b/src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/ui/cms/project/ProjectViewer.java
index f3ac8ec..fa571f4 100644
--- a/src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/ui/cms/project/ProjectViewer.java
+++ b/src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/ui/cms/project/ProjectViewer.java
@@ -25,6 +25,7 @@ import org.gcube.portlets.user.geoportaldataviewer.client.ui.map.MapView;
 import org.gcube.portlets.user.geoportaldataviewer.client.util.NewBrowserWindow;
 
 import com.github.gwtbootstrap.client.ui.Button;
+import com.github.gwtbootstrap.client.ui.Modal;
 import com.github.gwtbootstrap.client.ui.constants.ButtonType;
 import com.github.gwtbootstrap.client.ui.constants.IconType;
 import com.google.gwt.core.client.GWT;
@@ -38,6 +39,7 @@ import com.google.gwt.user.client.Random;
 import com.google.gwt.user.client.Window;
 import com.google.gwt.user.client.rpc.AsyncCallback;
 import com.google.gwt.user.client.ui.Composite;
+import com.google.gwt.user.client.ui.FlowPanel;
 import com.google.gwt.user.client.ui.FormPanel;
 import com.google.gwt.user.client.ui.FormPanel.SubmitCompleteEvent;
 import com.google.gwt.user.client.ui.FormPanel.SubmitEvent;
@@ -266,16 +268,26 @@ public class ProjectViewer extends Composite {
 				panel.add(new Hidden(GeoportalDataViewerConstants.PROIECT_ID_PARAMETER, thePDV.getId()));
 				panel.add(new Hidden(GeoportalDataViewerConstants.CONTEXT_ID_PARAMETER, currentContextId));
 				panel.add(new Hidden(GeoportalDataViewerConstants.USER_ID_PARAMETER, currentUserId));
-
+				
+				final Modal contactinServiceModal = new Modal(true, true);
+				contactinServiceModal.setCloseVisible(false);
+				contactinServiceModal.setTitle("Export");
+				FlowPanel panelMsg = new FlowPanel();
+				panelMsg.add(new HTML("Contacting the service..."));
+				contactinServiceModal.add(panelMsg);
+				contactinServiceModal.show();
+				
 				// Add an event handler to the form.
 				form.addSubmitHandler(new FormPanel.SubmitHandler() {
 					public void onSubmit(SubmitEvent event) {
 						GWT.log("onSubmit done");
-						NewBrowserWindow.open("", targetWindow, null);
+						contactinServiceModal.hide();
 					}
 				});
 				form.addSubmitCompleteHandler(new FormPanel.SubmitCompleteHandler() {
 					public void onSubmitComplete(SubmitCompleteEvent event) {
+						contactinServiceModal.hide();
+						NewBrowserWindow.open("", targetWindow, null);
 						GWT.log("onSubmitComplete done");
 
 					}
diff --git a/src/main/java/org/gcube/portlets/user/geoportaldataviewer/server/GeoportalExporterActionServlet.java b/src/main/java/org/gcube/portlets/user/geoportaldataviewer/server/GeoportalExporterActionServlet.java
index 24fb61a..964380e 100644
--- a/src/main/java/org/gcube/portlets/user/geoportaldataviewer/server/GeoportalExporterActionServlet.java
+++ b/src/main/java/org/gcube/portlets/user/geoportaldataviewer/server/GeoportalExporterActionServlet.java
@@ -54,18 +54,18 @@ public class GeoportalExporterActionServlet extends HttpServlet {
 		serveRequest(req, resp);
 	}
 
-//	/**
-//	 * Do get.
-//	 *
-//	 * @param req  the req
-//	 * @param resp the resp
-//	 * @throws IOException      Signals that an I/O exception has occurred.
-//	 * @throws ServletException the servlet exception
-//	 */
-//	public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
-//		logger.info("doGet Called");
-//		serveRequest(req, resp);
-//	}
+	/**
+	 * Do get.
+	 *
+	 * @param req  the req
+	 * @param resp the resp
+	 * @throws IOException      Signals that an I/O exception has occurred.
+	 * @throws ServletException the servlet exception
+	 */
+	public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
+		logger.info("doGet Called");
+		sendError(resp, "The request cannot be served (via http GET). Please retry by using the Export facility provided by Data-Viewer UI");
+	}
 
 	/**
 	 * Serve request.