diff --git a/cad.py b/cad.py
index ca11b21..641bad9 100644
--- a/cad.py
+++ b/cad.py
@@ -3,7 +3,24 @@ import os
 import subprocess
 
 
+
 def convert_dxf_to_dwg(dxf_files: List[str]):
+    cad_file_path = r"D:/Program Files/Cad2022/AutoCAD 2022/accoreconsole.exe"
+    first_dwg_file = dxf_files[0]
+    dir_path = os.path.dirname(first_dwg_file)
+    script_path = f"{dir_path}/batch.scr"
+    for _, dxf in enumerate(dxf_files):
+        with open(script_path, "w", encoding="ansi") as f:
+            file_name_path, _ = os.path.splitext(dxf)
+            new_dwg_name = f"{file_name_path}.dwg"
+            if os.path.exists(new_dwg_name):
+                os.remove(new_dwg_name)
+            f.write(f'saveas 2004 "{new_dwg_name}"\n')
+            cmd = rf'"{cad_file_path}" /s "{script_path}" /i "{dxf}" /iso'
+        subprocess.call(cmd,stderr=subprocess.DEVNULL,stdin=subprocess.DEVNULL,stdout=subprocess.DEVNULL)
+
+
+def convert_dxf_to_dwg1(dxf_files: List[str]):
     cad_file_path = r"D:/Program Files/Cad2022/AutoCAD 2022/acad.exe"
     first_dwg_file = dxf_files[0]
     dir_path = os.path.dirname(first_dwg_file)