diff --git a/evoflow/entities/data_manipulate/file_operator/pdf_file.py b/evoflow/entities/data_manipulate/file_operator/pdf_file.py
index 6d2b818..e058931 100644
--- a/evoflow/entities/data_manipulate/file_operator/pdf_file.py
+++ b/evoflow/entities/data_manipulate/file_operator/pdf_file.py
@@ -112,3 +112,6 @@ def to_full_image(self, dpi=200) -> ImageFile:
 
             full_image.data = np.concatenate([mat1, mat2], axis=0)
         return full_image
+
+    def close(self):
+        self.data.close()