Update app.py

app.py

@@ -25,8 +25,9 @@ def pdf_to_document_store(pdf_files):
     for pdf in pdf_files:
         doc = converter.convert(file_path=pdf.name, meta=None)[0]
         preprocessed_doc=preprocessor.process([doc])
-        documents.append(doc)
-    document_store.write_documents(preprocessed_doc)
+        st.write(preprocessed_doc[0]['content']
+        documents.append(preprocessed_doc)
+    document_store.write_documents(documents)
     st.write('Document count: ', document_store.get_document_count())