diff --git a/source/mkw/Patch/PatchOperation.py b/source/mkw/Patch/PatchOperation.py
index 8ae57b6..982beec 100644
--- a/source/mkw/Patch/PatchOperation.py
+++ b/source/mkw/Patch/PatchOperation.py
@@ -5,7 +5,7 @@ from typing import IO
 from PIL import Image, ImageDraw, ImageFont
 
 from source.mkw.Patch import *
-from source.wt.img import IMGPath
+from source.wt import img
 
 
 class PatchOperation:
@@ -225,20 +225,11 @@ class PatchOperation:
             patched_file_name = file_name.rsplit(".", 1)[0]
             patch_content = BytesIO()
 
-            # write the image to a temporary directory
-            tmp_file = Path(f"./.tmp/{file_name}")
-            tmp_file.parent.mkdir(parents=True, exist_ok=True)
-            file_content.seek(0)
-            tmp_file.write_bytes(file_content.read())
-
             # write the encoded image into the file
             patch_content.write(
-                IMGPath(tmp_file).get_encoded_data(self.encoding)
+                img.encode_data(file_content.read(), self.encoding)
             )
 
-            # delete the temporary directory when finished
-            tmp_file.unlink()
-
             patch_content.seek(0)
             return patched_file_name, patch_content
 
diff --git a/source/wt/bmg.py b/source/wt/bmg.py
index dbb6221..7e3bbe1 100644
--- a/source/wt/bmg.py
+++ b/source/wt/bmg.py
@@ -14,13 +14,13 @@ def _tools_run(*args) -> bytes:
     return _run(tools_path, *args)
 
 
-def _tools_run_popen(*args) -> subprocess.Popen:
+def _tools_run_popen(*args, **kwargs) -> subprocess.Popen:
     """
     Return a popen of command with wbmgt
     :param args: command arguments
     :return: the process of the command
     """
-    return _run_popen(tools_path, *args)
+    return _run_popen(tools_path, *args, **kwargs)
 
 
 class BMGPath:
diff --git a/source/wt/img.py b/source/wt/img.py
index 32e9787..9d17b31 100644
--- a/source/wt/img.py
+++ b/source/wt/img.py
@@ -1,10 +1,45 @@
 from source.wt import *
-from source.wt import _run
+from source.wt import _run, _run_popen
 
 tools_path = tools_szs_dir / ("wimgt.exe" if system == "win64" else "wimgt")
 
 
 @better_wt_error(tools_path)
+def _tools_run(*args) -> bytes:
+    """
+    Return a command with wimgt and return the output
+    :param args: command arguments
+    :return: the output of the command
+    """
+    return _run(tools_path, *args)
+
+
+def _tools_run_popen(*args) -> subprocess.Popen:
+    """
+    Return a popen of command with wimgt
+    :param args: command arguments
+    :return: the process of the command
+    """
+    return _run_popen(tools_path, *args)
+
+
+@better_wt_error(tools_path)
+def encode_data(image_data: bytes, transform: str = "CMPR") -> bytes:
+    """
+    Convert the image data and return the encoded image data
+    :param image_data: the original image data
+    :param transform: the type of the image encoding
+    :return: the encoded image data
+    """
+    process = _tools_run_popen("ENCODE", "-", "--transform", transform, "--DEST", "-")
+    stdout, _ = process.communicate(input=image_data)
+
+    if process.returncode != 0:
+        raise WTError(tools_path, process.returncode)
+
+    return stdout
+
+
 class IMGPath:
     """
     Represent a path to a normal image, that can be converted into game image data
@@ -14,20 +49,12 @@ class IMGPath:
     def __init__(self, path: Path | str):
         self.path: Path = Path(path)
 
-    @better_wt_error(tools_path)
-    def _run(self, *args) -> bytes:
-        """
-        Return a command with wimgt and return the output
-        :param args: command arguments
-        :return: the output of the command
-        """
-        return _run(tools_path, *args)
-
     def get_encoded_data(self, transform: str = "CMPR") -> bytes:
         """
-        Convert the image return the encoded image data
+        Convert the image and return the encoded image data
         :transform: the type of the image encoding
         :return: the data of the encoded image
         """
         # using "-" for destination allow for output in the stdout
-        return self._run("ENCODE", self.path, "--transform", transform, "--DEST", "-")
+        return _tools_run("ENCODE", self.path, "--transform", transform, "--DEST", "-")
+