diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..c768e8b7
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,3 @@
+# 동봉한 LibreDWG 실행 파일 — 줄바꿈 변환이 닿으면 실행이 깨진다.
+B07_DesignDetail/openwebcad/tools/libredwg/*.exe binary
+B07_DesignDetail/openwebcad/tools/libredwg/*.dll binary
diff --git a/B07_DesignDetail/B07_DesignDetail_Engine_Frame_Export.py b/B07_DesignDetail/B07_DesignDetail_Engine_Frame_Export.py
index fbbc3e7c..09d7b0e2 100644
--- a/B07_DesignDetail/B07_DesignDetail_Engine_Frame_Export.py
+++ b/B07_DesignDetail/B07_DesignDetail_Engine_Frame_Export.py
@@ -21,10 +21,14 @@ from typing import Any
 
 import ezdxf
 
+from B07_DesignDetail.B07_DesignDetail_Engine_Frame_Import import bundled_tool
+
 logger = logging.getLogger(__name__)
 
-# 내보내는 DXF 형식 — LibreDWG 가 읽어 DWG 로 바꿀 수 있는 범위에 맞춘다.
+# 파일로 내려보내는 DXF 형식. DWG 로 갈 때는 LibreDWG 가 쓰는 R2004 로 맞춘다 —
+# 더 새 형식을 주면 한글이 깨진 채로 DWG 에 박힌다(2026-09-06 실측).
 _DXF_VERSION = "R2018"
+_DWG_SOURCE_VERSION = "R2004"
 _DEFAULT_TEXT_MM = 3.0
 
 
@@ -99,12 +103,14 @@ def _add_entity(
         _add_entity(space, child, layers, skipped)
 
 
-def drawing_to_dxf(drawing: dict[str, Any]) -> tuple[bytes, dict[str, int]]:
+def drawing_to_dxf(
+    drawing: dict[str, Any], version: str = _DXF_VERSION
+) -> tuple[bytes, dict[str, int]]:
     """캐드 도면(JSON)을 DXF 바이트로. 건너뛴 도형 수를 함께 돌려준다."""
     entities = drawing.get("entities")
     if not isinstance(entities, list) or not entities:
         raise ValueError("내보낼 도형이 없습니다.")
-    document = ezdxf.new(_DXF_VERSION)
+    document = ezdxf.new(version)
     space = document.modelspace()
     layers: set[str] = {layer.dxf.name for layer in document.layers}
     skipped: dict[str, int] = {}
@@ -117,11 +123,11 @@ def drawing_to_dxf(drawing: dict[str, Any]) -> tuple[bytes, dict[str, int]]:
 
 
 def _dxf2dwg_path() -> str | None:
-    """LibreDWG 의 DWG 쓰기 도구. `.env` 값이 먼저고, 없으면 PATH 에서 찾는다."""
+    """LibreDWG 의 DWG 쓰기 도구 — `.env` 값 → 동봉본 → PATH 순으로 찾는다."""
     configured = os.getenv("LIBREDWG_DXF2DWG_PATH", "").strip()
     if configured:
         return configured if Path(configured).is_file() else None
-    return shutil.which("dxf2dwg")
+    return bundled_tool("dxf2dwg.exe") or shutil.which("dxf2dwg")
 
 
 def dxf_to_dwg(dxf_bytes: bytes) -> bytes:
@@ -151,9 +157,9 @@ def dxf_to_dwg(dxf_bytes: bytes) -> bytes:
 
 def export_drawing(drawing: dict[str, Any], file_format: str) -> tuple[bytes, dict[str, int]]:
     """도면을 요청한 형식(dxf·dwg) 파일 바이트로 낸다."""
-    dxf_bytes, skipped = drawing_to_dxf(drawing)
     if file_format == "dxf":
-        return dxf_bytes, skipped
+        return drawing_to_dxf(drawing)
     if file_format == "dwg":
+        dxf_bytes, skipped = drawing_to_dxf(drawing, _DWG_SOURCE_VERSION)
         return dxf_to_dwg(dxf_bytes), skipped
     raise ValueError("DXF 또는 DWG 로만 내보낼 수 있습니다.")
diff --git a/B07_DesignDetail/B07_DesignDetail_Engine_Frame_Import.py b/B07_DesignDetail/B07_DesignDetail_Engine_Frame_Import.py
index 2498229b..0cb7dd28 100644
--- a/B07_DesignDetail/B07_DesignDetail_Engine_Frame_Import.py
+++ b/B07_DesignDetail/B07_DesignDetail_Engine_Frame_Import.py
@@ -28,6 +28,7 @@ from uuid import NAMESPACE_URL, uuid5
 
 import ezdxf
 from ezdxf import colors as ezdxf_colors
+from ezdxf.lldxf.encoding import decode_dxf_unicode, has_dxf_unicode
 
 logger = logging.getLogger(__name__)
 
@@ -38,6 +39,17 @@ _FLATTEN_MM = 0.2
 _MAX_ENTITIES = 20000
 
 
+# 프로그램에 함께 담은 LibreDWG 자리 — `B07_DesignDetail/openwebcad/tools/libredwg/`.
+# 별도 실행 파일로만 부른다(라이브러리로 품지 않는다) — 자세한 것은 그 폴더의 README.
+_BUNDLED_DIR = Path(__file__).resolve().parent / "openwebcad" / "tools" / "libredwg"
+
+
+def bundled_tool(name: str) -> str | None:
+    """동봉한 변환기 경로. 없으면 None."""
+    path = _BUNDLED_DIR / name
+    return str(path) if path.is_file() else None
+
+
 def _entity_id(index: int) -> str:
     return str(uuid5(_IMPORT_NS, str(index)))
 
@@ -99,12 +111,17 @@ def _polyline(index: int, entity: Any, points: list[Any], closed: bool) -> dict[
     return {**_base(index, entity, "PolyLine"), "shapeData": None, "children": children}
 
 
+def _plain(label: str) -> str:
+    """옛 DXF 는 한글을 유니코드 escape 로 적는다 — 글자로 되돌린다."""
+    return decode_dxf_unicode(label) if has_dxf_unicode(label) else label
+
+
 def _text(index: int, entity: Any, label: str, insert: Any, height: float) -> dict[str, Any]:
     rotation = float(getattr(entity.dxf, "rotation", 0.0) or 0.0)
     return {
         **_base(index, entity, "Text"),
         "shapeData": {
-            "label": label,
+            "label": _plain(label),
             "basePoint": _point(insert[0], insert[1]),
             "options": {
                 "textDirection": _point(cos(radians(rotation)), sin(radians(rotation))),
@@ -215,11 +232,11 @@ def dwg_version(data: bytes) -> str | None:
 
 
 def _dwg2dxf_path() -> str | None:
-    """LibreDWG 변환기(dwg2dxf) 자리. `.env` 값이 먼저고, 없으면 PATH 에서 찾는다."""
+    """LibreDWG 변환기(dwg2dxf) 자리 — `.env` 값 → 동봉본 → PATH 순으로 찾는다."""
     configured = os.getenv("LIBREDWG_DWG2DXF_PATH", "").strip()
     if configured:
         return configured if Path(configured).is_file() else None
-    return shutil.which("dwg2dxf")
+    return bundled_tool("dwg2dxf.exe") or shutil.which("dwg2dxf")
 
 
 def _dwg_to_dxf(source: Path, work_dir: Path) -> Path:
diff --git a/B07_DesignDetail/openwebcad/tools/libredwg/COPYING b/B07_DesignDetail/openwebcad/tools/libredwg/COPYING
new file mode 100644
index 00000000..f288702d
--- /dev/null
+++ b/B07_DesignDetail/openwebcad/tools/libredwg/COPYING
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
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diff --git a/B07_DesignDetail/openwebcad/tools/libredwg/README.md b/B07_DesignDetail/openwebcad/tools/libredwg/README.md
new file mode 100644
index 00000000..cabd38ea
--- /dev/null
+++ b/B07_DesignDetail/openwebcad/tools/libredwg/README.md
@@ -0,0 +1,37 @@
+# LibreDWG (DWG ↔ DXF 변환기) — 동봉본
+
+B07 도각·도면의 **DWG 불러오기·내보내기**에 쓰는 외부 프로그램. Aislo 코드가 아니라
+GNU LibreDWG 프로젝트의 산출물을 그대로 담아 둔 것이다 (2026-09-06 사용자 확정).
+
+| 항목 | 값 |
+|---|---|
+| 버전 | 0.14.8594 (Windows 64비트 배포본) |
+| 원본 | <https://github.com/LibreDWG/libredwg/releases> |
+| 프로젝트 | <https://www.gnu.org/software/libredwg/> |
+| 라이선스 | GNU GPL v3 이상 (`COPYING`) |
+| 읽는 범위 | DWG r13 ~ r2018. 그보다 새 형식은 화면이 「2018 DWG 또는 DXF 로 저장」 안내로 떨어진다 |
+
+## 담은 파일
+
+`dwg2dxf.exe`(DWG→DXF) · `dxf2dwg.exe`(DXF→DWG) · `libredwg-0.dll` ·
+`libiconv-2.dll` · `libpcre2-8-0.dll` · `libpcre2-16-0.dll`
+
+배포본의 나머지(예제·문서·헤더·**파이썬 바인딩**)는 담지 않았다. 특히 파이썬 바인딩은
+**일부러 뺐다** — 파이썬에서 `import` 하면 라이브러리를 끌어안는 것이라 GPL 이 Aislo
+코드까지 번진다.
+
+## 지키는 선
+
+- Aislo 는 이 프로그램들을 **별도 실행 파일로만 부른다**(`subprocess`). 링크하거나
+  라이브러리로 품지 않는다 — 그래서 Aislo 코드에는 GPL 의무가 미치지 않는다.
+- 프로그램을 고객에게 넘길 때는 이 폴더(실행 파일 + `COPYING` + 위 원본 주소)를 함께
+  넘긴다. 원본 소스는 위 주소에서 그대로 받을 수 있다.
+- 이 파일들은 **고치지 않는다**. 새 버전으로 바꿀 때는 원본 배포본에서 같은 6개만 다시
+  담고 이 문서의 버전을 고친다.
+
+## 찾는 자리
+
+서버 코드가 이 폴더를 먼저 본다. 다른 자리에 두려면 `.env` 에 경로를 적는다.
+
+- `LIBREDWG_DWG2DXF_PATH` — DWG 불러오기
+- `LIBREDWG_DXF2DWG_PATH` — DWG 내보내기
diff --git a/B07_DesignDetail/openwebcad/tools/libredwg/dwg2dxf.exe b/B07_DesignDetail/openwebcad/tools/libredwg/dwg2dxf.exe
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diff --git a/B07_DesignDetail/openwebcad/tools/libredwg/libpcre2-8-0.dll b/B07_DesignDetail/openwebcad/tools/libredwg/libpcre2-8-0.dll
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