diff --git a/app/Jobs/TutorialVideoJob.php b/app/Jobs/TutorialVideoJob.php
index e6107a15..3203ae17 100644
--- a/app/Jobs/TutorialVideoJob.php
+++ b/app/Jobs/TutorialVideoJob.php
@@ -241,16 +241,7 @@ public function handle(
             // === Step 5: 최종 합성 (80%) ===
             $tutorial->updateProgress(TutorialVideo::STATUS_ASSEMBLING, 70, '영상 합성 중...');
 
-            // ASS 자막 생성 (인트로/아웃트로 나레이션은 자막에서 제외)
-            $subtitleScenes = array_map(function ($scene) {
-                $sn = (int) ($scene['scene_number'] ?? 0);
-                if ($sn <= 1 || $sn === 999) {
-                    $scene['narration'] = '';
-                }
-                return $scene;
-            }, $scenes);
-            $subtitlePath = "{$workDir}/subtitle.ass";
-            $videoAssembly->generateAssSubtitle($subtitleScenes, $subtitlePath, $narrationDurations, 'landscape');
+            // 자막 비활성화: 슬라이드 하단 캡션바에 나레이션이 이미 표시되므로 ASS 자막 불필요
 
             // 최종 MP4 합성
             $finalOutputPath = "{$workDir}/final_tutorial.mp4";
@@ -259,7 +250,7 @@ public function handle(
                 $durations,
                 $narrationPath,
                 $bgmResult,
-                $subtitlePath,
+                null,
                 $finalOutputPath
             );
 
diff --git a/app/Services/Video/TutorialAssemblyService.php b/app/Services/Video/TutorialAssemblyService.php
index 1446433a..6ced1dc2 100644
--- a/app/Services/Video/TutorialAssemblyService.php
+++ b/app/Services/Video/TutorialAssemblyService.php
@@ -29,7 +29,7 @@ public function assembleFromImages(
         array $durations,
         ?string $narrationPath,
         ?string $bgmPath,
-        string $subtitlePath,
+        ?string $subtitlePath,
         string $outputPath
     ): ?string {
         if (empty($slidePaths)) {
diff --git a/app/Services/Video/VideoAssemblyService.php b/app/Services/Video/VideoAssemblyService.php
index 3530854d..244e7c34 100644
--- a/app/Services/Video/VideoAssemblyService.php
+++ b/app/Services/Video/VideoAssemblyService.php
@@ -395,7 +395,7 @@ public function assemble(
         string $videoPath,
         ?string $narrationPath,
         ?string $bgmPath,
-        string $subtitlePath,
+        ?string $subtitlePath,
         string $outputPath
     ): ?string {
         $dir = dirname($outputPath);
@@ -436,9 +436,6 @@ public function assemble(
             $filterComplex = null;
         }
 
-        // 자막 비디오 필터 (ass 필터: ASS 스타일(Alignment 등) 완전 보존)
-        $vf = sprintf("ass=%s", escapeshellarg($subtitlePath));
-
         // FFmpeg 명령 조립
         $cmd = 'ffmpeg -y ' . implode(' ', $inputs);
 
@@ -447,7 +444,12 @@ public function assemble(
         }
 
         $cmd .= ' ' . implode(' ', $mapParts);
-        $cmd .= ' -vf ' . escapeshellarg($vf);
+
+        // 자막 비디오 필터 (슬라이드 캡션바에 텍스트 포함 시 생략 가능)
+        if ($subtitlePath && file_exists($subtitlePath)) {
+            $vf = sprintf("ass=%s", escapeshellarg($subtitlePath));
+            $cmd .= ' -vf ' . escapeshellarg($vf);
+        }
         $cmd .= ' -c:v libx264 -preset fast -crf 23 -r 30';
         $cmd .= ' -c:a aac -b:a 192k';
         $cmd .= ' -shortest';