diff --git a/src/main/java/com/emr/service/CommomService.java b/src/main/java/com/emr/service/CommomService.java
index cf7b2e2..a258ae9 100644
--- a/src/main/java/com/emr/service/CommomService.java
+++ b/src/main/java/com/emr/service/CommomService.java
@@ -35,6 +35,7 @@ import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
+import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.CollectionUtils;
 import org.springframework.util.ObjectUtils;
 import org.springframework.web.context.request.RequestContextHolder;
@@ -1023,6 +1024,7 @@ public class CommomService {
      * @param request
      * @return
      */
+    //@Transactional
     public ResultUtil uploadCost(HttpServletRequest request) {
 
         //读取文件
@@ -1033,6 +1035,12 @@ public class CommomService {
             return ResultUtil.error("上传文件不能为空");
         }
 
+        // 文件大小检查
+        /*long fileSize = multipartFile.getSize();
+        if (fileSize >= 419430400) { // 400MB
+            return ResultUtil.error("上传文件大小不能大于400M");
+        }*/
+
         try {
 
             //解析压缩包文件上传并解压，返回存放pdf的全路径
diff --git a/src/main/java/com/emr/util/Pdf2ImgUtil.java b/src/main/java/com/emr/util/Pdf2ImgUtil.java
index fc88fef..0420adb 100644
--- a/src/main/java/com/emr/util/Pdf2ImgUtil.java
+++ b/src/main/java/com/emr/util/Pdf2ImgUtil.java
@@ -36,8 +36,8 @@ public class Pdf2ImgUtil {
                 // dpi为144，越高越清晰，转换越慢
                 BufferedImage image = renderer.renderImageWithDPI(i, 150); // Windows native DPI
                 // 将图片写出到该路径下
-                ImageIO.write(image, type, new File(picPath + "\\" + "FY_" + filename + "_" + (i + 1) + "." + type));
-                picNameList.add("FY_" + filename + "_" + (i + 1) + "." + type);
+                ImageIO.write(image, type, new File(picPath + "\\" + "FY_" + filename + "_" + String.format("%04d",i + 1)+ "." + type));
+                picNameList.add("FY_" + filename + "_" + String.format("%04d",i + 1)+ "." + type);
             }
 
             //long endTime = System.currentTimeMillis();