looping through list of files

app.py

@@ -18,7 +18,7 @@ preprocessor = PreProcessor(
 def pdf_to_document_store(pdf_files):
     document_store.delete_documents()
     converter = PDFToTextConverter(remove_numeric_tables=True, valid_languages=["en"])
-    documents = [converter.convert(file_path=pdf_files.name, meta=None)[0]]
+    documents = [converter.convert(file_path=pdf.name, meta=None) for pdf in pdf_files]
     preprocessed_docs = preprocessor.process(documents)
     document_store.write_documents(preprocessed_docs)
     return None