diff --git a/paperless-frontend/src/pages/InboxDetailPage.tsx b/paperless-frontend/src/pages/InboxDetailPage.tsx
index 44046bc..e6be406 100644
--- a/paperless-frontend/src/pages/InboxDetailPage.tsx
+++ b/paperless-frontend/src/pages/InboxDetailPage.tsx
@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useMemo, useRef, useState, type ReactNode } from 'react';
+import { cloneElement, useCallback, useEffect, useMemo, useRef, useState, type ReactElement, type ReactNode } from 'react';
 import { WysiwygEditor, type WysiwygEditorHandle } from '../components/WysiwygEditor';
 import { useNavigate, useParams } from 'react-router-dom';
 import { Button, Dropdown, Empty, Form, Input, Modal, Popconfirm, Select, Space, Spin, Steps, Tag, Tooltip, Typography, message } from 'antd';
@@ -1096,6 +1096,7 @@ export default function InboxDetailPage() {
   const canSplit = selectedPage !== currentDoc?.pages[0];
   const rotationCount = Object.keys(file.rotations ?? {}).length;
   const manualSplitCount = file.manualSplitPages.length;
+  const canProcess = documents.length > 0 && documents.every((doc) => doc.belegname);
   const pendingEdits = file.deletedPages.length + rotationCount + manualSplitCount;
   const editsLabel = (() => {
     const parts: string[] = [];
@@ -1121,8 +1122,11 @@ export default function InboxDetailPage() {
           style={{ marginLeft: 'auto' }}
           type="primary"
           icon={<DownOutlined />}
-          disabled={documents.length === 0}
-          onClick={() => setWizardOpen(true)}
+          onClick={() => { if (canProcess) setWizardOpen(true); }}
+          buttonsRender={([leftButton, rightButton]) => [
+            cloneElement(leftButton as ReactElement<{ disabled?: boolean }>, { disabled: !canProcess }),
+            rightButton,
+          ]}
           menu={{
             items: [
               { key: 'save', label: 'Speichern', icon: <SaveOutlined /> },