diff --git a/app/Http/Controllers/ESign/EsignApiController.php b/app/Http/Controllers/ESign/EsignApiController.php
index ab7a6d50..a4a0bee9 100644
--- a/app/Http/Controllers/ESign/EsignApiController.php
+++ b/app/Http/Controllers/ESign/EsignApiController.php
@@ -99,6 +99,7 @@ public function store(Request $request): JsonResponse
             'metadata' => 'nullable|array',
             'metadata.*' => 'nullable|string|max:500',
             'file' => 'nullable|file|mimes:pdf,doc,docx|max:20480',
+            'creator_stamp_image' => 'nullable|string',
         ]);
 
         $tenantId = session('selected_tenant_id', 1);
@@ -178,6 +179,21 @@ public function store(Request $request): JsonResponse
             ]);
         }
 
+        // 법인도장 이미지 처리
+        if ($request->input('creator_stamp_image')) {
+            $creatorSigner = EsignSigner::withoutGlobalScopes()
+                ->where('contract_id', $contract->id)
+                ->where('role', 'creator')
+                ->first();
+
+            if ($creatorSigner) {
+                $imageData = base64_decode($request->input('creator_stamp_image'));
+                $imagePath = "esign/{$tenantId}/signatures/{$contract->id}_{$creatorSigner->id}_stamp.png";
+                Storage::disk('local')->put($imagePath, $imageData);
+                $creatorSigner->update(['signature_image_path' => $imagePath]);
+            }
+        }
+
         // 감사 로그
         EsignAuditLog::create([
             'tenant_id' => $tenantId,
@@ -440,16 +456,45 @@ public function send(Request $request, int $id): JsonResponse
             'updated_by' => auth()->id(),
         ]);
 
+        // 법인도장이 있는 작성자 자동 서명 처리
+        $creatorSigner = $contract->signers->firstWhere('role', 'creator');
+        if ($creatorSigner && $creatorSigner->signature_image_path) {
+            $creatorSigner->update([
+                'status' => 'signed',
+                'signed_at' => now(),
+                'sign_ip_address' => $request->ip(),
+                'sign_user_agent' => $request->userAgent(),
+            ]);
+
+            EsignAuditLog::create([
+                'tenant_id' => $tenantId,
+                'contract_id' => $contract->id,
+                'signer_id' => $creatorSigner->id,
+                'action' => 'signed',
+                'ip_address' => $request->ip(),
+                'user_agent' => $request->userAgent(),
+                'metadata' => ['auto_stamp' => true, 'signer_name' => $creatorSigner->name],
+                'created_at' => now(),
+            ]);
+
+            // 계약 상태를 partially_signed로 변경
+            $contract->update(['status' => 'partially_signed']);
+        }
+
         // 서명 순서 유형에 따라 알림 발송
         if ($contract->sign_order_type === 'parallel') {
-            // 동시 서명: 모든 서명자에게 발송
+            // 동시 서명: 서명 안 한 서명자에게만 발송
             foreach ($contract->signers as $s) {
+                if ($s->status === 'signed') continue;
                 $s->update(['status' => 'notified']);
                 Mail::to($s->email)->send(new EsignRequestMail($contract, $s));
             }
         } else {
-            // 순차 서명: 첫 번째 서명자에게만 발송
-            $nextSigner = $contract->signers()->orderBy('sign_order')->first();
+            // 순차 서명: 다음 미서명 서명자에게 발송
+            $nextSigner = $contract->signers()
+                ->where('status', '!=', 'signed')
+                ->orderBy('sign_order')
+                ->first();
             if ($nextSigner) {
                 $nextSigner->update(['status' => 'notified']);
                 Mail::to($nextSigner->email)->send(new EsignRequestMail($contract, $nextSigner));
diff --git a/resources/views/esign/create.blade.php b/resources/views/esign/create.blade.php
index 362f2435..c1f6ea7b 100644
--- a/resources/views/esign/create.blade.php
+++ b/resources/views/esign/create.blade.php
@@ -56,6 +56,8 @@ className="w-full border border-gray-300 rounded-md px-2.5 py-1.5 text-sm focus:
         counterpart_name: '', counterpart_email: '', counterpart_phone: '',
     });
     const [file, setFile] = useState(null);
+    const [stampImage, setStampImage] = useState(null);
+    const [stampPreview, setStampPreview] = useState(null);
     const [submitting, setSubmitting] = useState(false);
     const [errors, setErrors] = useState({});
     const [templates, setTemplates] = useState([]);
@@ -64,6 +66,25 @@ className="w-full border border-gray-300 rounded-md px-2.5 py-1.5 text-sm focus:
     const [templateSearch, setTemplateSearch] = useState('');
     const [metadata, setMetadata] = useState({});
     const fileRef = useRef(null);
+    const stampFileRef = useRef(null);
+
+    const handleStampSelect = (e) => {
+        const selected = e.target.files[0];
+        if (!selected) return;
+        const reader = new FileReader();
+        reader.onload = () => {
+            const base64 = reader.result.split(',')[1];
+            setStampImage(base64);
+            setStampPreview(reader.result);
+        };
+        reader.readAsDataURL(selected);
+    };
+
+    const removeStamp = () => {
+        setStampImage(null);
+        setStampPreview(null);
+        if (stampFileRef.current) stampFileRef.current.value = '';
+    };
 
     useEffect(() => {
         fetch('/esign/contracts/templates', { headers: { 'Accept': 'application/json' } })
@@ -132,6 +153,8 @@ className="w-full border border-gray-300 rounded-md px-2.5 py-1.5 text-sm focus:
             Object.entries(metadata).forEach(([k, v]) => { fd.append(`metadata[${k}]`, v || ''); });
         }
 
+        if (stampImage) fd.append('creator_stamp_image', stampImage);
+
         try {
             fd.append('_token', csrfToken);
             fd.append('signers[0][name]', form.creator_name);
@@ -227,6 +250,39 @@ className="w-full border border-gray-300 rounded-md px-2.5 py-1.5 text-sm focus:
                     <div className="space-y-4">
                         <SignerRow prefix="creator" title="작성자" subtitle="나" color="#3B82F6"
                                    form={form} errors={errors} onChange={handleChange} />
+
+                        {/* 법인도장 등록 */}
+                        <div className="bg-blue-50 rounded-lg p-3 border border-blue-200">
+                            <div className="flex items-center gap-2 mb-2">
+                                <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="#3B82F6" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                                    <rect x="3" y="3" width="18" height="18" rx="3"/>
+                                    <circle cx="12" cy="12" r="4"/>
+                                </svg>
+                                <span className="text-xs font-semibold text-blue-800">법인도장</span>
+                                <span className="text-[11px] text-blue-500">발송 시 작성자 서명을 자동 처리합니다</span>
+                            </div>
+                            {stampPreview ? (
+                                <div className="flex items-center gap-3">
+                                    <img src={stampPreview} alt="법인도장 미리보기" className="h-16 w-16 object-contain border border-blue-300 rounded bg-white p-1" />
+                                    <div className="flex-1">
+                                        <p className="text-xs text-blue-700">법인도장이 등록되었습니다.</p>
+                                    </div>
+                                    <button type="button" onClick={removeStamp}
+                                            className="w-7 h-7 flex items-center justify-center rounded-full text-red-400 hover:bg-red-50 hover:text-red-600 transition-colors" title="삭제">
+                                        <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2"><path d="M18 6L6 18M6 6l12 12"/></svg>
+                                    </button>
+                                </div>
+                            ) : (
+                                <div>
+                                    <input ref={stampFileRef} type="file" accept="image/*" onChange={handleStampSelect} className="hidden" />
+                                    <button type="button" onClick={() => stampFileRef.current?.click()}
+                                            className="px-3 py-1.5 bg-white border border-blue-300 rounded-md text-xs font-medium text-blue-700 hover:bg-blue-100 transition-colors">
+                                        법인도장 이미지 등록
+                                    </button>
+                                </div>
+                            )}
+                        </div>
+
                         <div className="border-t"></div>
                         <SignerRow prefix="counterpart" title="상대방" subtitle="서명 요청 대상" color="#EF4444"
                                    form={form} errors={errors} onChange={handleChange} />