diff --git a/contributors/ CNSeniorious000/pdf.py b/contributors/ CNSeniorious000/pdf.py
index ba9dddc49ae161bf0a5964079b825e7098be0f8a..2ff4f5c7271dc611c417f3c01300c5ee601d8109 100644
--- a/contributors/ CNSeniorious000/pdf.py	
+++ b/contributors/ CNSeniorious000/pdf.py	
@@ -1,4 +1,5 @@
 # from functools import cache, cached_property
+# import requests
 #
 #
 # # PDF与栅格化
@@ -14,16 +15,28 @@
 #         """a path refers to only one document"""
 #         return object.__new__(cls)
 #
-#     def __init__(self, path: str):
+#     def __init__(self, path: str) -> None:
 #         """load from disk or internet"""
-#         if path.startswith("http"):
-#             import requests
-#             self.raw = requests.get(path).content
-#         else:
-#             self.raw = open(path, "rb").read()
+#
+#         def __init__(self, path: str) -> None:
+#             """Load data from disk or the internet."""
+#             try:
+#                 if path.startswith("http"):
+#                     # 从互联网加载数据
+#                     self.raw = requests.get(path).content
+#                 else:
+#                     # 从磁盘加载数据
+#                     with open(path, "rb") as file:
+#                         self.raw = file.read()
+#             except requests.RequestException as e:
+#                 print(f"Error fetching data from URL: {e}")
+#             except FileNotFoundError as e:
+#                 print(f"Error opening file: {e}")
+#             except Exception as e:
+#                 print(f"An unexpected error occurred: {e}")
 #
 #     @cached_property
-#     def doc(self):
+#     def doc(self) -> fitz.Document:
 #         import fitz
 #         # noinspection PyUnresolvedReferences
 #         return fitz.open(stream=self.raw)