diff --git a/src/Umbraco.Web.UI.Client/src/packages/rte/tiptap/extensions/umb/media-upload.extension.ts b/src/Umbraco.Web.UI.Client/src/packages/rte/tiptap/extensions/umb/media-upload.extension.ts
index 57d02b8ccf..a1412bdc07 100644
--- a/src/Umbraco.Web.UI.Client/src/packages/rte/tiptap/extensions/umb/media-upload.extension.ts
+++ b/src/Umbraco.Web.UI.Client/src/packages/rte/tiptap/extensions/umb/media-upload.extension.ts
@@ -1,3 +1,4 @@
+import { imageSize } from '../../utils/index.js';
 import { UmbTiptapExtensionApiBase, type UmbTiptapExtensionArgs } from '../types.js';
 import {
 	TemporaryFileStatus,
@@ -98,7 +99,7 @@ export default class UmbTiptapMediaUploadExtension extends UmbTiptapExtensionApi
 				return;
 			}
 
-			let { width, height } = await this.#imageSize(URL.createObjectURL(upload.file));
+			let { width, height } = await imageSize(URL.createObjectURL(upload.file));
 
 			if (maxImageSize > 0 && width > maxImageSize) {
 				const ratio = maxImageSize / width;
@@ -131,33 +132,4 @@ export default class UmbTiptapMediaUploadExtension extends UmbTiptapExtensionApi
 	#filterFiles(files: FileList): File[] {
 		return Array.from(files).filter((file) => this.allowedFileTypes.includes(file.type));
 	}
-
-	/**
-	 * Get the dimensions of an image from a URL.
-	 * @param {string} url The URL of the image. It can be a local file (blob url) or a remote file.
-	 * @returns {Promise<{width: number, height: number}>} The width and height of the image as downloaded from the URL.
-	 */
-	#imageSize(url: string): Promise<{ width: number; height: number }> {
-		const img = new Image();
-
-		const promise = new Promise<{ width: number; height: number }>((resolve, reject) => {
-			img.onload = () => {
-				// Natural size is the actual image size regardless of rendering.
-				// The 'normal' `width`/`height` are for the **rendered** size.
-				const width = img.naturalWidth;
-				const height = img.naturalHeight;
-
-				// Resolve promise with the width and height
-				resolve({ width, height });
-			};
-
-			// Reject promise on error
-			img.onerror = reject;
-		});
-
-		// Setting the source makes it start downloading and eventually call `onload`
-		img.src = url;
-
-		return promise;
-	}
 }
diff --git a/src/Umbraco.Web.UI.Client/src/packages/rte/tiptap/index.ts b/src/Umbraco.Web.UI.Client/src/packages/rte/tiptap/index.ts
index f0f1ade33d..5a6a198bdb 100644
--- a/src/Umbraco.Web.UI.Client/src/packages/rte/tiptap/index.ts
+++ b/src/Umbraco.Web.UI.Client/src/packages/rte/tiptap/index.ts
@@ -1,2 +1,3 @@
 export * from './components/index.js';
 export * from './extensions/index.js';
+export * from './utils/index.js';
diff --git a/src/Umbraco.Web.UI.Client/src/packages/rte/tiptap/utils/index.ts b/src/Umbraco.Web.UI.Client/src/packages/rte/tiptap/utils/index.ts
new file mode 100644
index 0000000000..cbd93b58fe
--- /dev/null
+++ b/src/Umbraco.Web.UI.Client/src/packages/rte/tiptap/utils/index.ts
@@ -0,0 +1,28 @@
+/**
+ * Get the dimensions of an image from a URL.
+ * @param {string} url The URL of the image. It can be a local file (blob url) or a remote file.
+ * @returns {Promise<{width: number, height: number}>} The width and height of the image as downloaded from the URL.
+ */
+export function imageSize(url: string): Promise<{ width: number; height: number }> {
+	const img = new Image();
+
+	const promise = new Promise<{ width: number; height: number }>((resolve, reject) => {
+		img.onload = () => {
+			// Natural size is the actual image size regardless of rendering.
+			// The 'normal' `width`/`height` are for the **rendered** size.
+			const width = img.naturalWidth;
+			const height = img.naturalHeight;
+
+			// Resolve promise with the width and height
+			resolve({ width, height });
+		};
+
+		// Reject promise on error
+		img.onerror = reject;
+	});
+
+	// Setting the source makes it start downloading and eventually call `onload`
+	img.src = url;
+
+	return promise;
+}