diff --git a/pmapi/src/main/java/com/ningdatech/pmapi/irs/sign/IRSAPIRequest.java b/pmapi/src/main/java/com/ningdatech/pmapi/irs/sign/IRSAPIRequest.java
index 41acf08..fcdae3e 100644
--- a/pmapi/src/main/java/com/ningdatech/pmapi/irs/sign/IRSAPIRequest.java
+++ b/pmapi/src/main/java/com/ningdatech/pmapi/irs/sign/IRSAPIRequest.java
@@ -1,5 +1,6 @@
 package com.ningdatech.pmapi.irs.sign;
 
+import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONObject;
 import com.ningdatech.basic.exception.BizException;
 import com.ningdatech.basic.util.StrPool;
@@ -74,7 +75,16 @@ public class IRSAPIRequest {
             throw new BizException("调用IRS盖章接口失败,印章编号为：" + sealSn + StrPool.SEMICOLON +  e.getMessage());
         }
         // return obj;
-        return resp.getBytes();
+        JSONObject jsonObject = JSON.parseObject(resp, JSONObject.class);
+        String data = jsonObject.getString("data");
+        JSONObject object = JSON.parseObject(data, JSONObject.class);
+        // 获取盖好章的PDF文件内容Base64字符串
+        String signFileB64 = object.getString("signFileB64");
+        if (Objects.nonNull(signFileB64)){
+            return signFileB64.getBytes();
+        }else {
+            return null;
+        }
     }
 
 
diff --git a/pmapi/src/main/java/com/ningdatech/pmapi/todocenter/manage/TodoCenterManage.java b/pmapi/src/main/java/com/ningdatech/pmapi/todocenter/manage/TodoCenterManage.java
index ba3f283..69ec8c0 100644
--- a/pmapi/src/main/java/com/ningdatech/pmapi/todocenter/manage/TodoCenterManage.java
+++ b/pmapi/src/main/java/com/ningdatech/pmapi/todocenter/manage/TodoCenterManage.java
@@ -494,9 +494,7 @@ public class TodoCenterManage {
         Integer signType = req.getSignType();
         signReq.setSignType(signType);
         // 调用盖章接口,获取盖章后返回的pdf文件字符数组
-        byte[] signPdf = new byte[0];
-
-        signPdf = IRSAPIRequest.createSignPdf(signReq);
+        byte[] signPdf = IRSAPIRequest.createSignPdf(signReq);
 
         // 转换成MultipartFile
         MultipartFile multipartFile = new MockMultipartFile("file", originalFileName, "application/pdf", signPdf);