diff --git a/odoo/tools/pdf/_pypdf.py b/odoo/tools/pdf/_pypdf.py
index 46895a76320fa..f0c514a159d62 100644
--- a/odoo/tools/pdf/_pypdf.py
+++ b/odoo/tools/pdf/_pypdf.py
@@ -1,3 +1,5 @@
+from typing import Dict, Any
+
 import pypdf
 from pypdf import errors, filters, generic, PdfReader as _Reader, PdfWriter as _Writer
 from pypdf.generic import create_string_object
@@ -42,6 +44,11 @@ def getDocumentInfo(self):
 
 
 class PdfWriter(_Writer):
+    def add_metadata(self, infos: Dict[str, Any]) -> None:
+        if hasattr(self, '_info') and self._info is None:
+            self._info = generic.DictionaryObject()
+        super().add_metadata(infos)
+
     def getPage(self, pageNumber):
         return self.pages[pageNumber]