Update app.py

app.py

@@ -18,10 +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 = []
-    for pdf in pdf_files:
-        logging.info(pdf.name)
-        documents.append(converter.convert(file_path=pdf.name, meta=None))
+    documents = [converter.convert(file_path=pdf.name, meta=None)]
     preprocessed_docs = preprocessor.process(documents)
     document_store.write_documents(preprocessed_docs)
     return None
@@ -34,7 +31,7 @@ def summarize(files):
 
 title = "Summarize one or more PDFs with a Haystack Summariser pipeline"
 iface = gr.Interface(fn=summarize, 
-                    inputs="files",
+                    inputs=[gr.inputs.File(file_count="single",type="file", label="Upload a pdf")],
                     outputs="text",
                     title=title,
                     theme="default")