diff --git a/web/src/pages/agent/constant/index.tsx b/web/src/pages/agent/constant/index.tsx
index 869f247c0..4904a5985 100644
--- a/web/src/pages/agent/constant/index.tsx
+++ b/web/src/pages/agent/constant/index.tsx
@@ -1016,10 +1016,10 @@ export const initialPDFGeneratorValues = {
   watermark_text: '',
   enable_toc: false,
   outputs: {
-    file_path: { type: 'string', value: '' },
-    pdf_base64: { type: 'string', value: '' },
-    download: { type: 'string', value: '' },
-    success: { type: 'boolean', value: false },
+    file_path: { type: 'string' },
+    pdf_base64: { type: 'string' },
+    download: { type: 'string' },
+    success: { type: 'boolean' },
   },
 };
 
diff --git a/web/src/pages/agent/form/components/output.tsx b/web/src/pages/agent/form/components/output.tsx
index 73058b67b..e428c4651 100644
--- a/web/src/pages/agent/form/components/output.tsx
+++ b/web/src/pages/agent/form/components/output.tsx
@@ -14,7 +14,10 @@ type OutputProps = {
   isFormRequired?: boolean;
 } & PropsWithChildren;
 
-export function transferOutputs(outputs: Record<string, any>) {
+export function transferOutputs(outputs: Record<string, any> | undefined) {
+  if (!outputs) {
+    return [];
+  }
   return Object.entries(outputs).map(([key, value]) => ({
     title: key,
     type: value?.type,
@@ -35,7 +38,7 @@ export function Output({
       <div className="text-sm flex items-center justify-between">
         {t('flow.output')} <span>{children}</span>
       </div>
-      <ul>
+      <ul className="space-y-1">
         {list.map((x, idx) => (
           <li
             key={idx}
diff --git a/web/src/pages/agent/form/pdf-generator-form/index.tsx b/web/src/pages/agent/form/pdf-generator-form/index.tsx
index 110bb6369..3c3ce7f16 100644
--- a/web/src/pages/agent/form/pdf-generator-form/index.tsx
+++ b/web/src/pages/agent/form/pdf-generator-form/index.tsx
@@ -64,13 +64,12 @@ function PDFGeneratorForm({ node }: INextOperatorForm) {
     add_timestamp: z.boolean(),
     watermark_text: z.string().optional(),
     enable_toc: z.boolean(),
-    outputs: z
-      .object({
-        file_path: z.object({ type: z.string() }),
-        pdf_base64: z.object({ type: z.string() }),
-        success: z.object({ type: z.string() }),
-      })
-      .optional(),
+    outputs: z.object({
+      file_path: z.object({ type: z.string() }),
+      pdf_base64: z.object({ type: z.string() }),
+      download: z.object({ type: z.string() }),
+      success: z.object({ type: z.string() }),
+    }),
   });
 
   const form = useForm<z.infer<typeof FormSchema>>({
@@ -78,9 +77,11 @@ function PDFGeneratorForm({ node }: INextOperatorForm) {
     resolver: zodResolver(FormSchema),
   });
 
+  const formOutputs = form.watch('outputs');
+
   const outputList = useMemo(() => {
-    return transferOutputs(values.outputs);
-  }, [values.outputs]);
+    return transferOutputs(formOutputs ?? values.outputs);
+  }, [formOutputs, values.outputs]);
 
   useWatchFormChange(node?.id, form);
 
diff --git a/web/src/pages/agent/hooks/use-add-node.ts b/web/src/pages/agent/hooks/use-add-node.ts
index 53f99e51c..d5cceef63 100644
--- a/web/src/pages/agent/hooks/use-add-node.ts
+++ b/web/src/pages/agent/hooks/use-add-node.ts
@@ -48,6 +48,7 @@ import {
   initialVariableAssignerValues,
   initialWaitingDialogueValues,
   initialWenCaiValues,
+  initialPDFGeneratorValues,
   initialWikipediaValues,
   initialYahooFinanceValues,
 } from '../constant';
@@ -179,7 +180,7 @@ export const useInitializeOperatorParams = () => {
       [Operator.Loop]: initialLoopValues,
       [Operator.LoopStart]: {},
       [Operator.ExitLoop]: {},
-      [Operator.PDFGenerator]: {},
+      [Operator.PDFGenerator]: initialPDFGeneratorValues,
       [Operator.ExcelProcessor]: {},
     };
   }, [llmId]);