diff --git a/src/frontend/flask_app/static/js/image_viewer.js b/src/frontend/flask_app/static/js/image_viewer.js
index 7f45f67..735fc31 100644
--- a/src/frontend/flask_app/static/js/image_viewer.js
+++ b/src/frontend/flask_app/static/js/image_viewer.js
@@ -337,7 +337,8 @@
         var z = this._z;
         this._stage.style.width = this._w && z ? (this._w * z) + 'px' : '0px';
         this._stage.style.height = this._w && z ? (this._h * z) + 'px' : '0px';
-        this._pctEl.textContent = TmfViewerMath.pct(z);
+        // #122: modo contenuto (DXF in mm) = percentuale rispetto ad Adatta; immagine = 100 % un pixel per pixel
+        this._pctEl.textContent = TmfViewerMath.pct(!this._hasSrc() && this._content && this._fit ? z / this._fit : z);
         this._drawOverlay();
         this._drawLabels();
         this._cursor();
diff --git a/src/frontend/flask_app/templates/maker/task_editor.html b/src/frontend/flask_app/templates/maker/task_editor.html
index 50ac0fc..14e6d4e 100644
--- a/src/frontend/flask_app/templates/maker/task_editor.html
+++ b/src/frontend/flask_app/templates/maker/task_editor.html
@@ -796,8 +796,7 @@
                                       title-in="{{ _('Ingrandisci') }}" title-out="{{ _('Riduci') }}" title-save="{{ _('Salva immagine') }}"
                                       class="rounded border border-[var(--border-color)]"
                                       style="background: var(--bg-primary);"></tmf-viewer>
-                        </div>
-                        </div>
+                        </div>{# #122: chiude solo la colonna dell'immagine (una chiusura in piu' chiudeva la griglia) #}
                         <div class="space-y-2">
                           <p x-show="error" class="text-xs text-red-500" x-text="error"></p>
                           <p x-show="notice" class="text-xs text-emerald-600" x-text="notice"></p>