diff --git a/src/views/contract/launch/components/mixedSignModal.vue b/src/views/contract/launch/components/mixedSignModal.vue
index a06d61e..7e45dd6 100644
--- a/src/views/contract/launch/components/mixedSignModal.vue
+++ b/src/views/contract/launch/components/mixedSignModal.vue
@@ -369,6 +369,17 @@
                 <div class="section-subtitle">
                   2、拖动签章到文档上（{{ sealList.length }} 个）
                 </div>
+                <div class="seal-size-control">
+                  <span>签章大小</span>
+                  <a-slider
+                    v-model:value="sealDefaultScale"
+                    :min="0.3"
+                    :max="2.0"
+                    :step="0.1"
+                    style="flex: 1"
+                  />
+                  <span class="seal-size-label">{{ Math.round(sealDefaultScale * 100) }}%</span>
+                </div>
                 <div class="seal-drag-list">
                   <div
                     v-for="seal in sealList"
@@ -377,7 +388,7 @@
                     draggable="true"
                     @dragstart="onDragSealStart($event, seal)"
                   >
-                    <img :src="seal.pictureUrl" class="drag-seal-img" />
+                    <img :src="seal.pictureUrl" class="drag-seal-img" :style="{ width: (120 * sealDefaultScale) + 'px' }" />
                     <span class="drag-seal-name">{{ seal.sealName }}</span>
                   </div>
                 </div>
@@ -1251,6 +1262,7 @@ const queryEntName = ref("");
 const querySealTypes = ref([0, 20, 10, 30, 40, 50, 60]);
 const fetchingSeals = ref(false);
 const sealList = ref([]);
+const sealDefaultScale = ref(1.0);
 
 
 queryName.value = '周小锋';
@@ -1373,7 +1385,7 @@ function onDropSeal(e, pageNum) {
     pageNum,
     x,
     y,
-    scale: 1,
+    scale: sealDefaultScale.value,
     status: "pending",
   });
 
@@ -1387,9 +1399,12 @@ function getPageSealItems(pageNum) {
 }
 
 function getPlacedStyle(seal) {
+  const s = seal.scale || sealDefaultScale.value;
+  const baseWidth = 170;
   return {
     left: `${seal.x * scaleRatio.value}px`,
     top: `${seal.y * scaleRatio.value}px`,
+    width: `${baseWidth * s}px`,
   };
 }
 
@@ -2091,7 +2106,7 @@ watch(visible, (value) => {
 }
 
 .placed-seal .placed-seal-img {
-  width: 170px;
+  width: 100%;
   height: auto;
   opacity: 0.85;
   display: block;
@@ -2310,6 +2325,22 @@ watch(visible, (value) => {
   margin-bottom: 14px;
 }
 
+.seal-size-control {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  margin-bottom: 12px;
+  font-size: 12px;
+  color: #64748b;
+}
+
+.seal-size-label {
+  min-width: 38px;
+  text-align: right;
+  font-weight: 600;
+  color: #2c3e50;
+}
+
 .section-subtitle {
   font-size: 13px;
   font-weight: 600;
@@ -2348,7 +2379,7 @@ watch(visible, (value) => {
 }
 
 .seal-drag-item {
-  width: 70px;
+  min-width: 70px;
   cursor: grab;
   text-align: center;
   border: 1px solid #e4e7ed;