if no format is specified, there is no need to convert the pdf,

we can directly returns it's type and data

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@35914 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/PDFDocument.py

@@ -87,6 +87,8 @@ class PDFDocument(Image):
         data = self._convertToText()
         self.setConversion(data, mime=mime, format='txt')
         return (mime, data)
+    elif format is None:
+      return self.getContentType(), self.getData()
     else:
       return Image._convert(self, format, **kw)