diff --git a/app/Http/Controllers/ESign/EsignApiController.php b/app/Http/Controllers/ESign/EsignApiController.php
index ae83635c..ab7a6d50 100644
--- a/app/Http/Controllers/ESign/EsignApiController.php
+++ b/app/Http/Controllers/ESign/EsignApiController.php
@@ -5,6 +5,7 @@
 use App\Http\Controllers\Controller;
 use App\Mail\EsignRequestMail;
 use App\Models\ESign\EsignContract;
+use App\Services\ESign\DocxToPdfConverter;
 use App\Models\ESign\EsignFieldTemplate;
 use App\Models\ESign\EsignFieldTemplateItem;
 use App\Models\ESign\EsignSigner;
@@ -97,6 +98,7 @@ public function store(Request $request): JsonResponse
             'signers.*.role' => 'required|in:creator,counterpart',
             'metadata' => 'nullable|array',
             'metadata.*' => 'nullable|string|max:500',
+            'file' => 'nullable|file|mimes:pdf,doc,docx|max:20480',
         ]);
 
         $tenantId = session('selected_tenant_id', 1);
@@ -112,12 +114,14 @@ public function store(Request $request): JsonResponse
         $fileSize = null;
 
         if ($request->hasFile('file')) {
-            // 사용자가 직접 업로드한 파일 우선 사용
+            // 사용자가 직접 업로드한 파일 우선 사용 (Word면 PDF 자동 변환)
             $file = $request->file('file');
-            $fileName = $file->getClientOriginalName();
-            $fileSize = $file->getSize();
-            $fileHash = hash_file('sha256', $file->getRealPath());
-            $filePath = $file->store("esign/{$tenantId}/contracts", 'local');
+            $converter = new DocxToPdfConverter();
+            $result = $converter->convertAndStore($file, "esign/{$tenantId}/contracts");
+            $filePath = $result['path'];
+            $fileName = $result['name'];
+            $fileHash = $result['hash'];
+            $fileSize = $result['size'];
         } elseif ($request->input('template_id')) {
             // 템플릿에 PDF가 있으면 복사
             $template = EsignFieldTemplate::forTenant($tenantId)
@@ -535,7 +539,7 @@ public function download(int $id)
     public function uploadPdf(Request $request, int $id): JsonResponse
     {
         $request->validate([
-            'file' => 'required|file|mimes:pdf|max:20480',
+            'file' => 'required|file|mimes:pdf,doc,docx|max:20480',
         ]);
 
         $tenantId = session('selected_tenant_id', 1);
@@ -546,20 +550,21 @@ public function uploadPdf(Request $request, int $id): JsonResponse
         }
 
         $file = $request->file('file');
-        $filePath = $file->store("esign/{$tenantId}/contracts", 'local');
+        $converter = new DocxToPdfConverter();
+        $result = $converter->convertAndStore($file, "esign/{$tenantId}/contracts");
 
         $contract->update([
-            'original_file_path' => $filePath,
-            'original_file_name' => $file->getClientOriginalName(),
-            'original_file_hash' => hash_file('sha256', $file->getRealPath()),
-            'original_file_size' => $file->getSize(),
+            'original_file_path' => $result['path'],
+            'original_file_name' => $result['name'],
+            'original_file_hash' => $result['hash'],
+            'original_file_size' => $result['size'],
             'updated_by' => auth()->id(),
         ]);
 
         return response()->json([
             'success' => true,
             'message' => 'PDF 파일이 업로드되었습니다.',
-            'data' => ['path' => $filePath, 'name' => $file->getClientOriginalName()],
+            'data' => ['path' => $result['path'], 'name' => $result['name']],
         ]);
     }
 
@@ -764,7 +769,7 @@ public function updateTemplate(Request $request, int $id): JsonResponse
     public function uploadTemplatePdf(Request $request, int $id): JsonResponse
     {
         $request->validate([
-            'file' => 'required|file|mimes:pdf|max:20480',
+            'file' => 'required|file|mimes:pdf,doc,docx|max:20480',
         ]);
 
         $tenantId = session('selected_tenant_id', 1);
@@ -776,13 +781,14 @@ public function uploadTemplatePdf(Request $request, int $id): JsonResponse
         }
 
         $file = $request->file('file');
-        $filePath = $file->store("esign/{$tenantId}/templates", 'local');
+        $converter = new DocxToPdfConverter();
+        $result = $converter->convertAndStore($file, "esign/{$tenantId}/templates");
 
         $template->update([
-            'file_path' => $filePath,
-            'file_name' => $file->getClientOriginalName(),
-            'file_hash' => hash_file('sha256', $file->getRealPath()),
-            'file_size' => $file->getSize(),
+            'file_path' => $result['path'],
+            'file_name' => $result['name'],
+            'file_hash' => $result['hash'],
+            'file_size' => $result['size'],
         ]);
 
         return response()->json([
diff --git a/app/Services/ESign/DocxToPdfConverter.php b/app/Services/ESign/DocxToPdfConverter.php
new file mode 100644
index 00000000..c43fc45f
--- /dev/null
+++ b/app/Services/ESign/DocxToPdfConverter.php
@@ -0,0 +1,87 @@
+<?php
+
+namespace App\Services\ESign;
+
+use Illuminate\Http\UploadedFile;
+use Illuminate\Support\Facades\Storage;
+use Illuminate\Support\Str;
+use RuntimeException;
+
+class DocxToPdfConverter
+{
+    /**
+     * Word 파일이면 PDF로 변환, PDF면 그대로 저장.
+     *
+     * @return array{path: string, name: string, hash: string, size: int}
+     */
+    public function convertAndStore(UploadedFile $file, string $storagePath): array
+    {
+        if (!$this->isWordFile($file)) {
+            // PDF는 그대로 저장
+            $path = $file->store($storagePath, 'local');
+
+            return [
+                'path' => $path,
+                'name' => $file->getClientOriginalName(),
+                'hash' => hash_file('sha256', $file->getRealPath()),
+                'size' => $file->getSize(),
+            ];
+        }
+
+        // Word → PDF 변환
+        $originalName = $file->getClientOriginalName();
+        $pdfName = preg_replace('/\.(docx?|DOCX?)$/', '.pdf', $originalName);
+
+        $tmpDir = sys_get_temp_dir() . '/esign_convert_' . Str::random(16);
+        mkdir($tmpDir, 0755, true);
+
+        try {
+            $tmpWordPath = $tmpDir . '/' . 'source.' . $file->getClientOriginalExtension();
+            copy($file->getRealPath(), $tmpWordPath);
+
+            $command = sprintf(
+                'libreoffice --headless --convert-to pdf --outdir %s %s 2>&1',
+                escapeshellarg($tmpDir),
+                escapeshellarg($tmpWordPath)
+            );
+
+            exec($command, $output, $exitCode);
+
+            if ($exitCode !== 0) {
+                throw new RuntimeException(
+                    'LibreOffice 변환 실패 (exit code: ' . $exitCode . '): ' . implode("\n", $output)
+                );
+            }
+
+            $tmpPdfPath = $tmpDir . '/source.pdf';
+            if (!file_exists($tmpPdfPath)) {
+                throw new RuntimeException('변환된 PDF 파일을 찾을 수 없습니다.');
+            }
+
+            $hash = hash_file('sha256', $tmpPdfPath);
+            $size = filesize($tmpPdfPath);
+
+            // 최종 저장 경로
+            $finalPath = $storagePath . '/' . Str::random(40) . '.pdf';
+            Storage::disk('local')->put($finalPath, file_get_contents($tmpPdfPath));
+
+            return [
+                'path' => $finalPath,
+                'name' => $pdfName,
+                'hash' => $hash,
+                'size' => $size,
+            ];
+        } finally {
+            // 임시 파일 정리
+            array_map('unlink', glob($tmpDir . '/*'));
+            @rmdir($tmpDir);
+        }
+    }
+
+    public function isWordFile(UploadedFile $file): bool
+    {
+        $ext = strtolower($file->getClientOriginalExtension());
+
+        return in_array($ext, ['doc', 'docx']);
+    }
+}
diff --git a/resources/views/esign/create.blade.php b/resources/views/esign/create.blade.php
index f2e2a5d8..4d69948b 100644
--- a/resources/views/esign/create.blade.php
+++ b/resources/views/esign/create.blade.php
@@ -184,8 +184,8 @@ className="w-8 h-8 flex items-center justify-center rounded-lg text-amber-500 ho
                                       className="w-full border border-gray-300 rounded-md px-2.5 py-1.5 text-sm focus:ring-2 focus:ring-blue-500 focus:border-blue-500 outline-none transition-colors" />
                         </div>
                         <div>
-                            <label className="block text-xs font-medium text-gray-700 mb-1">PDF 파일 {!templateId && <span className="text-red-500">*</span>}</label>
-                            <input ref={fileRef} type="file" accept=".pdf" onChange={e => setFile(e.target.files[0])} required={!templateId}
+                            <label className="block text-xs font-medium text-gray-700 mb-1">계약 파일 {!templateId && <span className="text-red-500">*</span>}</label>
+                            <input ref={fileRef} type="file" accept=".pdf,.doc,.docx" onChange={e => setFile(e.target.files[0])} required={!templateId}
                                    className="w-full border border-gray-300 rounded-md px-2.5 py-1.5 text-sm file:mr-3 file:py-0.5 file:px-2.5 file:rounded file:border-0 file:bg-blue-50 file:text-blue-700 file:text-xs file:font-medium file:cursor-pointer" />
                             {file && <p className="text-xs text-gray-500 mt-1">{file.name} ({(file.size / 1024 / 1024).toFixed(2)} MB)</p>}
                             {templateId && !file && (() => {
diff --git a/resources/views/esign/fields.blade.php b/resources/views/esign/fields.blade.php
index 65c893ab..7b040eb5 100644
--- a/resources/views/esign/fields.blade.php
+++ b/resources/views/esign/fields.blade.php
@@ -1161,7 +1161,7 @@ className="px-4 py-1.5 text-sm bg-blue-600 text-white rounded-lg hover:bg-blue-7
                                 <label className="inline-flex items-center gap-2 px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 text-sm font-medium cursor-pointer transition-colors">
                                     <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2"><path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/><polyline points="17 8 12 3 7 8"/><line x1="12" y1="3" x2="12" y2="15"/></svg>
                                     PDF 업로드
-                                    <input type="file" accept=".pdf" className="hidden" onChange={e => { if (e.target.files[0]) uploadPdf(e.target.files[0]); }} />
+                                    <input type="file" accept=".pdf,.doc,.docx" className="hidden" onChange={e => { if (e.target.files[0]) uploadPdf(e.target.files[0]); }} />
                                 </label>
                             </div>
                         </div>
diff --git a/resources/views/esign/templates.blade.php b/resources/views/esign/templates.blade.php
index 7869e8b6..ba62f8d7 100644
--- a/resources/views/esign/templates.blade.php
+++ b/resources/views/esign/templates.blade.php
@@ -228,7 +228,7 @@ className="px-4 py-2 text-sm bg-blue-600 text-white rounded-lg hover:bg-blue-700
                                     </button>
                                 </div>
                             )}
-                            <input ref={fileInputRef} type="file" accept=".pdf" onChange={handleUploadPdf} className="hidden" />
+                            <input ref={fileInputRef} type="file" accept=".pdf,.doc,.docx" onChange={handleUploadPdf} className="hidden" />
                             <p className="text-xs text-gray-400">PDF 파일은 이 템플릿으로 계약 생성 시 자동 사용됩니다. 최대 20MB.</p>
                         </div>
                     )}