diff --git a/CHANGELOG.md b/CHANGELOG.md
index e4e42d1b5..3a41dc02a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to
 ### Added
 
 - ✨(frontend) Add "Copy link to block" feature #2547
+- ✨(frontend) add word count to doc header toolbox #2549
 
 ### Changed
 
diff --git a/src/frontend/apps/e2e/__tests__/app-impress/doc-header.spec.ts b/src/frontend/apps/e2e/__tests__/app-impress/doc-header.spec.ts
index a95ff4974..a2545999d 100644
--- a/src/frontend/apps/e2e/__tests__/app-impress/doc-header.spec.ts
+++ b/src/frontend/apps/e2e/__tests__/app-impress/doc-header.spec.ts
@@ -69,6 +69,8 @@ test.describe('Doc Header', () => {
   }) => {
     await createDoc(page, 'doc-update', browserName, 1);
 
+    await writeInEditor({ page, text: 'Hello Content' });
+
     const card = page.getByLabel(
       'It is the card information about the document.',
     );
@@ -93,6 +95,7 @@ test.describe('Doc Header', () => {
     await expect(
       page.getByRole('menuitem', { name: 'Download' }),
     ).toBeVisible();
+    await expect(page.getByText('Word count: 2 words').first()).toBeVisible();
   });
 
   test('it updates the title doc and check the broadcast', async ({
diff --git a/src/frontend/apps/impress/src/features/docs/doc-editor/utils.ts b/src/frontend/apps/impress/src/features/docs/doc-editor/utils.ts
index e3e5e92b9..804f29e98 100644
--- a/src/frontend/apps/impress/src/features/docs/doc-editor/utils.ts
+++ b/src/frontend/apps/impress/src/features/docs/doc-editor/utils.ts
@@ -1,5 +1,15 @@
+import { DocsBlockNoteEditor } from './types';
+
 const HEX_COLOR_REGEX = /^#[0-9a-fA-F]{6}$/;
 
+export const getWordCount = (editor?: DocsBlockNoteEditor): number => {
+  const doc = editor?._tiptapEditor?.state.doc;
+  const text = doc ? doc.textBetween(0, doc.content.size, '\n') : '';
+  const trimmed = text.trim();
+
+  return trimmed ? trimmed.split(/\s+/).length : 0;
+};
+
 export const sanitizeColor = (color: string): string => {
   return HEX_COLOR_REGEX.test(color) ? color : randomColor();
 };
diff --git a/src/frontend/apps/impress/src/features/docs/doc-management/components/DocToolBox.tsx b/src/frontend/apps/impress/src/features/docs/doc-management/components/DocToolBox.tsx
index 65d14c3bb..635be7202 100644
--- a/src/frontend/apps/impress/src/features/docs/doc-management/components/DocToolBox.tsx
+++ b/src/frontend/apps/impress/src/features/docs/doc-management/components/DocToolBox.tsx
@@ -5,11 +5,16 @@ import {
   useTreeContext,
 } from '@gouvfr-lasuite/ui-components';
 import { Present } from '@gouvfr-lasuite/ui-components/icons';
+import { announce } from '@react-aria/live-announcer';
 import dynamic from 'next/dynamic';
 import { useRouter } from 'next/router';
-import { useState } from 'react';
+import { useEffect, useMemo, useState } from 'react';
 import { useTranslation } from 'react-i18next';
 
+import { Text } from '@/components/Text';
+import { useEditorStore } from '@/docs/doc-editor/stores/useEditorStore';
+import { getWordCount } from '@/docs/doc-editor/utils';
+import { printDocumentWithStyles } from '@/docs/doc-export/utils_print';
 import { usePresenterStore } from '@/docs/doc-presenter/stores';
 import { useAuth } from '@/features/auth';
 import ContentCopyIcon from '@/icons/copy.svg';
@@ -25,7 +30,6 @@ import StarIcon from '@/icons/star.svg';
 import DeleteIcon from '@/icons/trash.svg';
 import { useFocusStore, useResponsiveStore } from '@/stores';
 
-import { printDocumentWithStyles } from '../../doc-export/utils_print';
 import {
   KEY_DOC,
   KEY_LIST_DOC,
@@ -96,15 +100,34 @@ export const DocToolBox = ({ doc }: DocToolBoxProps) => {
   const [isModalHistoryOpen, setIsModalHistoryOpen] = useState(false);
   const [isModalLeaveOpen, setIsModalLeaveOpen] = useState(false);
 
+  const { editor } = useEditorStore();
+  const wordCountLabel = useMemo(() => {
+    if (openDropdown) {
+      return t('Word count: {{count}} words', {
+        count: getWordCount(editor),
+        description:
+          'In the document options menu, showing the number of words in the document.',
+      });
+    }
+  }, [editor, openDropdown, t]);
+
+  useEffect(() => {
+    if (wordCountLabel) {
+      announce(wordCountLabel, 'polite');
+    }
+  }, [wordCountLabel]);
+
   const { restoreFocus, addLastFocus } = useFocusStore();
   const { isMobile } = useResponsiveStore();
   const copyDocLink = useCopyDocLink(doc.id);
+
   const openPresenter = usePresenterStore((state) => state.open);
   const { mutate: duplicateDoc } = useDuplicateDoc({
     onSuccess: (data) => {
       void router.push(`/docs/${data.id}`);
     },
   });
+
   const removeFavoriteDoc = useDeleteFavoriteDoc({
     listInvalidQueries: [KEY_LIST_DOC, KEY_DOC, KEY_LIST_FAVORITE_DOC],
   });
@@ -232,6 +255,9 @@ export const DocToolBox = ({ doc }: DocToolBoxProps) => {
       },
       isHidden: !doc.abilities.destroy,
     },
+    {
+      type: 'separator',
+    },
   ];
 
   return (
@@ -241,6 +267,9 @@ export const DocToolBox = ({ doc }: DocToolBoxProps) => {
         isOpen={openDropdown}
         shouldCloseOnInteractOutside={() => true}
         onOpenChange={setOpenDropdown}
+        bottomMessage={
+          wordCountLabel && <Text $variation="tertiary">{wordCountLabel}</Text>
+        }
       >
         <Button
           aria-label={t('Open the document options')}
diff --git a/src/frontend/apps/impress/src/i18n/translations.json b/src/frontend/apps/impress/src/i18n/translations.json
index 1b016ca27..f3613cb6c 100644
--- a/src/frontend/apps/impress/src/i18n/translations.json
+++ b/src/frontend/apps/impress/src/i18n/translations.json
@@ -887,6 +887,9 @@
       "Shared with {{count}} users_many": "Shared with {{count}} users",
       "Shared with {{count}} users_one": "Shared with {{count}} user",
       "Shared with {{count}} users_other": "Shared with {{count}} users",
+      "Word count: {{count}} words_one": "Word count: {{count}} word",
+      "Word count: {{count}} words_many": "Word count: {{count}} words",
+      "Word count: {{count}} words_other": "Word count: {{count}} words",
       "days_many": "days",
       "days_one": "day",
       "days_other": "days"