Update server.py

server.py

@@ -20,7 +20,7 @@ def parse_pdf_and_return_markdown(pdf_file: bytes , extract_images: bool):
                 image_bytes = f.read()
 
             image_base64 = base64.b64encode(image_bytes).decode('utf-8')
-            image_data[f'image_{i+1}'] = image_base64
+            image_data[filename] = image_base64
 
             os.remove(filename)