diff --git a/lib/core/src/lib/i18n/de.json b/lib/core/src/lib/i18n/de.json
index 6d8bf072f1..0dd5bd11d0 100644
--- a/lib/core/src/lib/i18n/de.json
+++ b/lib/core/src/lib/i18n/de.json
@@ -452,7 +452,8 @@
       "CANCEL": "Abbrechen",
       "RESET": "Zurücksetzen",
       "THUMBNAILS": "Dokumenten-Miniaturansichten",
-      "THUMBNAILS_PANLEL_CLOSE": "Miniaturansichten-Fenster schließen"
+      "THUMBNAILS_PANLEL_CLOSE": "Miniaturansichten-Fenster schließen",
+      "LOADING": "Document is loading"
     },
     "PAGE_LABEL": {
       "SHOWING": "Angezeigt",
diff --git a/lib/core/src/lib/i18n/es.json b/lib/core/src/lib/i18n/es.json
index eaaf07d93a..6f9182b970 100644
--- a/lib/core/src/lib/i18n/es.json
+++ b/lib/core/src/lib/i18n/es.json
@@ -452,7 +452,8 @@
       "CANCEL": "Cancelar",
       "RESET": "Reiniciar",
       "THUMBNAILS": "Miniaturas de documento",
-      "THUMBNAILS_PANLEL_CLOSE": "Cerrar panel de miniaturas"
+      "THUMBNAILS_PANLEL_CLOSE": "Cerrar panel de miniaturas",
+      "LOADING": "Document is loading"
     },
     "PAGE_LABEL": {
       "SHOWING": "Mostrando",
diff --git a/lib/core/src/lib/i18n/fr.json b/lib/core/src/lib/i18n/fr.json
index 00a70f46bf..4d19845870 100644
--- a/lib/core/src/lib/i18n/fr.json
+++ b/lib/core/src/lib/i18n/fr.json
@@ -452,7 +452,8 @@
       "CANCEL": "Annuler",
       "RESET": "Réinitialiser",
       "THUMBNAILS": "Miniatures des documents",
-      "THUMBNAILS_PANLEL_CLOSE": "Fermer le panneau des miniatures"
+      "THUMBNAILS_PANLEL_CLOSE": "Fermer le panneau des miniatures",
+      "LOADING": "Document is loading"
     },
     "PAGE_LABEL": {
       "SHOWING": "Affichage en cours",
diff --git a/lib/core/src/lib/i18n/it.json b/lib/core/src/lib/i18n/it.json
index 12e23a8e42..785a5c0c49 100644
--- a/lib/core/src/lib/i18n/it.json
+++ b/lib/core/src/lib/i18n/it.json
@@ -452,7 +452,8 @@
       "CANCEL": "Annulla",
       "RESET": "Reimposta",
       "THUMBNAILS": "Miniature documento",
-      "THUMBNAILS_PANLEL_CLOSE": "Chiudi pannello miniature"
+      "THUMBNAILS_PANLEL_CLOSE": "Chiudi pannello miniature",
+      "LOADING": "Document is loading"
     },
     "PAGE_LABEL": {
       "SHOWING": "Visualizzazione di",
diff --git a/lib/core/src/lib/i18n/pl.json b/lib/core/src/lib/i18n/pl.json
index e4225fcf92..1fe68c3117 100644
--- a/lib/core/src/lib/i18n/pl.json
+++ b/lib/core/src/lib/i18n/pl.json
@@ -452,7 +452,8 @@
       "CANCEL": "Anuluj",
       "RESET": "Resetuj",
       "THUMBNAILS": "Miniatura dokumentu",
-      "THUMBNAILS_PANLEL_CLOSE": "Zamknij panel miniatur"
+      "THUMBNAILS_PANLEL_CLOSE": "Zamknij panel miniatur",
+      "LOADING": "Document is loading"
     },
     "PAGE_LABEL": {
       "SHOWING": "Wyświetlanie",
diff --git a/lib/core/src/lib/i18n/pt.json b/lib/core/src/lib/i18n/pt.json
index 3645adfb53..3f7e0d0ff1 100644
--- a/lib/core/src/lib/i18n/pt.json
+++ b/lib/core/src/lib/i18n/pt.json
@@ -452,7 +452,8 @@
       "CANCEL": "Cancelar",
       "RESET": "Redefinir",
       "THUMBNAILS": "Miniaturas do documento",
-      "THUMBNAILS_PANLEL_CLOSE": "Fechar painel de miniaturas"
+      "THUMBNAILS_PANLEL_CLOSE": "Fechar painel de miniaturas",
+      "LOADING": "Document is loading"
     },
     "PAGE_LABEL": {
       "SHOWING": "A mostrar",