diff --git a/server/app.py b/server/app.py
index f75eed2..3e85c73 100644
--- a/server/app.py
+++ b/server/app.py
@@ -224,6 +224,7 @@ async def stream(job_id: str) -> StreamingResponse:
                     asr_bottom=job.get("asr_bottom", False),
                     name_suffix=job.get("name_suffix", ""),
                     cards_fixed=job.get("cards_fixed", False),
+                    card_cuts=job.get("card_cuts") or None,
                 )
             else:
                 stream_iter = process_bg_template(
@@ -610,6 +611,7 @@ async def auto_build(
     remove_silence: str = Form(""),
     asr_bottom: str = Form(""),
     cards_fixed: str = Form(""),
+    card_cuts: str = Form(""),
 ) -> JSONResponse:
     """자동 탭 빌드 — 붙여넣기 스키마 JSON + 카드 PNG들 → 기존 paste job.
 
@@ -634,6 +636,14 @@ async def auto_build(
             body = await f.read()
             with open(os.path.join(cdir, f"{i:03d}.png"), "wb") as out:
                 out.write(body)
+    # 카드별 소속 컷 — 값이 깨져도 빌드를 막지 않는다(없으면 기존 전체 균등 배치)
+    cut_map: list[int] = []
+    try:
+        parsed = json.loads(card_cuts) if card_cuts.strip() else []
+        if isinstance(parsed, list):
+            cut_map = [int(v) for v in parsed if isinstance(v, int) and not isinstance(v, bool)]
+    except (json.JSONDecodeError, ValueError, TypeError):
+        cut_map = []
     JOBS[h] = {
         "paste": payload, "draft_name": f"auto_{h}",
         "video_scale": _scale(video_scale), "flip": _truthy(flip),
@@ -641,6 +651,7 @@ async def auto_build(
         "bg_white": _truthy(bg_white), "remove_silence": _truthy(remove_silence),
         "asr_bottom": _truthy(asr_bottom), "name_suffix": safe_tag,
         "cards_fixed": _truthy(cards_fixed),
+        "card_cuts": cut_map,
     }
     return JSONResponse({"job_id": h, "cuts": len(payload["cuts"]),
                          "cards": len(cards)})