diff --git a/src/views/board/BoardEdit.vue b/src/views/board/BoardEdit.vue
index 785e781..cb552f1 100644
--- a/src/views/board/BoardEdit.vue
+++ b/src/views/board/BoardEdit.vue
@@ -141,13 +141,34 @@
         }
     };
 
-    function extractPlainText(delta) {
-        if (!delta || !Array.isArray(delta.ops)) return '';
-        return delta.ops
-            .filter(op => typeof op.insert === 'string')
-            .map(op => op.insert.trim())
-            .join(' ')
-            .trim();
+    function isDeltaChanged(current, original) {
+        const Delta = Quill.import('delta');
+        const currentDelta = new Delta(current || []);
+        const originalDelta = new Delta(original || []);
+
+        const diff = originalDelta.diff(currentDelta);
+        if (!diff || diff.ops.length === 0) return false;
+
+        // 텍스트만 비교해서 완전 동일한지 확인
+        const getPlainText = delta =>
+            (delta.ops || [])
+                .filter(op => typeof op.insert === 'string')
+                .map(op => op.insert)
+                .join('');
+
+        const getImages = delta =>
+            (delta.ops || []).filter(op => typeof op.insert === 'object' && op.insert.image).map(op => op.insert.image);
+
+        const textCurrent = getPlainText(currentDelta);
+        const textOriginal = getPlainText(originalDelta);
+
+        const imgsCurrent = getImages(currentDelta);
+        const imgsOriginal = getImages(originalDelta);
+
+        const textEqual = textCurrent === textOriginal;
+        const imageEqual = JSON.stringify(imgsCurrent) === JSON.stringify(imgsOriginal);
+
+        return !(textEqual && imageEqual); // 둘 다 같아야 false
     }
 
     const isChanged = computed(() => {
@@ -212,16 +233,6 @@
         contentLoaded.value = true;
     };
 
-    watch(
-        content,
-        val => {
-            if (contentLoaded.value && !originalPlainText.value) {
-                originalPlainText.value = extractPlainText(val);
-            }
-        },
-        { immediate: true },
-    );
-
     const handleUpdateEditorImg = item => {
         editorUploadedImgList.value = item;
     };