diff --git a/src/editor/dialogs/imagePropertiesDialog.js b/src/editor/dialogs/imagePropertiesDialog.js
index 6cc9b8bd..042ee3b0 100644
--- a/src/editor/dialogs/imagePropertiesDialog.js
+++ b/src/editor/dialogs/imagePropertiesDialog.js
@@ -1,5 +1,6 @@
 /* eslint-disable node/no-unpublished-import */
 import 'elix/define/Dialog.js';
+import {isValidUnit} from '../../common/units.js';
 
 const template = document.createElement('template');
 template.innerHTML = `
@@ -298,6 +299,18 @@ export class SeImgPropDialog extends HTMLElement {
     };
     const onSaveHandler = (ev) => {
       let saveOpt = '';
+      const w = this.$canvasWidth.value;
+      const h = this.$canvasHeight.value;
+      if (w !== 'fit' && !isValidUnit('width', w)) {
+        this.$canvasWidth.parentElement.classList.add('error');
+      } else {
+        this.$canvasWidth.parentElement.classList.remove('error');
+      }
+      if (h !== 'fit' && !isValidUnit('height', w)) {
+        this.$canvasHeight.parentElement.classList.add('error');
+      } else {
+        this.$canvasHeight.parentElement.classList.remove('error');
+      }
       if (this.$imageOptEmbed.getAttribute('checked') === 'true') {
         saveOpt = 'embed';
       }
diff --git a/src/editor/svgedit.js b/src/editor/svgedit.js
index baa76d86..60503dfa 100644
--- a/src/editor/svgedit.js
+++ b/src/editor/svgedit.js
@@ -3914,22 +3914,18 @@ editor.init = () => {
   */
   const saveDocProperties = function (e) {
     // set title
-    const {title, w, h, save} = e.detail;    
+    const {title, w, h, save} = e.detail;
     // set document title
     svgCanvas.setDocumentTitle(title);
 
     if (w !== 'fit' && !isValidUnit('width', w)) {
-      // width.parentElement.classList.add('error');
       /* await */ $.alert(uiStrings.notification.invalidAttrValGiven);
       return false;
     }
-    // width.parentElement.classList.remove('error');
     if (h !== 'fit' && !isValidUnit('height', h)) {
-      // height.parentElement.classList.add('error');
       /* await */ $.alert(uiStrings.notification.invalidAttrValGiven);
       return false;
     }
-    // height.parentElement.classList.remove('error');
     if (!svgCanvas.setResolution(w, h)) {
       /* await */ $.alert(uiStrings.notification.noContentToFitTo);
       return false;