diff --git a/backend/src/api/routes/documents.py b/backend/src/api/routes/documents.py
index 57521da..dc79d7d 100644
--- a/backend/src/api/routes/documents.py
+++ b/backend/src/api/routes/documents.py
@@ -802,13 +802,14 @@ async def update_document(
         created_at=document.created_at,
         updated_at=document.updated_at,
         document_date=document.document_date,
-        uploader_name=document.uploader.full_name or document.uploader.email,
+        uploader_name=document.uploader.full_name or document.uploader.email if document.uploader else "Unknown",
         tags=[tag.name for tag in document.tags],
         book_id=str(document.book.id) if document.book else None,
         book_title=document.book.title if document.book else None,
         book_author=document.book.author if document.book else None,
         sort_order=document.sort_order,
-        matched_pdf_id=str(document.matched_pdf_id) if document.matched_pdf_id else None
+        matched_pdf_id=str(document.matched_pdf_id) if document.matched_pdf_id else None,
+        original_filename=document.original_filename
     )
 
 
diff --git a/frontend/static/js/book-editor.js b/frontend/static/js/book-editor.js
index 371d1eb..d54441e 100644
--- a/frontend/static/js/book-editor.js
+++ b/frontend/static/js/book-editor.js
@@ -206,24 +206,33 @@ window.bookEditorApp = () => ({
         if (this.saving) return;
         
         this.saving = true;
+        console.log('💾 저장 시작...');
         
         try {
             // 서적 정보 업데이트
+            console.log('📚 서적 정보 업데이트 중...');
             await window.api.updateBook(this.bookId, {
                 title: this.bookInfo.title,
                 author: this.bookInfo.author,
                 description: this.bookInfo.description
             });
+            console.log('✅ 서적 정보 업데이트 완료');
             
             // 각 문서의 순서와 PDF 매칭 정보 업데이트
-            const updatePromises = this.documents.map(doc => {
+            console.log('📄 문서 업데이트 시작...');
+            const updatePromises = this.documents.map((doc, index) => {
+                console.log(`📄 문서 ${index + 1}/${this.documents.length}: ${doc.title}`);
+                console.log(`  - sort_order: ${doc.sort_order}`);
+                console.log(`  - matched_pdf_id: ${doc.matched_pdf_id || 'null'}`);
+                
                 return window.api.updateDocument(doc.id, {
                     sort_order: doc.sort_order,
                     matched_pdf_id: doc.matched_pdf_id || null
                 });
             });
             
-            await Promise.all(updatePromises);
+            const results = await Promise.all(updatePromises);
+            console.log('✅ 모든 문서 업데이트 완료:', results.length, '개');
             
             console.log('✅ 모든 변경사항 저장 완료');
             this.showNotification('변경사항이 저장되었습니다', 'success');
@@ -234,7 +243,7 @@ window.bookEditorApp = () => ({
             }, 1500);
             
         } catch (error) {
-            console.error('저장 실패:', error);
+            console.error('❌ 저장 실패:', error);
             this.showNotification('저장에 실패했습니다: ' + error.message, 'error');
         } finally {
             this.saving = false;