diff --git a/dk-modules/business/src/main/java/org/dromara/business/service/impl/BusinessAlertServiceImpl.java b/dk-modules/business/src/main/java/org/dromara/business/service/impl/BusinessAlertServiceImpl.java
index 10a5cd1..b06c473 100644
--- a/dk-modules/business/src/main/java/org/dromara/business/service/impl/BusinessAlertServiceImpl.java
+++ b/dk-modules/business/src/main/java/org/dromara/business/service/impl/BusinessAlertServiceImpl.java
@@ -902,7 +902,7 @@ public class BusinessAlertServiceImpl implements IBusinessAlertService {
             FreemarkerUtil.renderTplFileToWord("预警导出.docx","alert.ftl",resultMap,response);
         } else if (bo.getExportType().equalsIgnoreCase("pdf")) {
             try {
-                HtmlConvertPdfHelper.htmlConvertPDF(resultMap,"pdfAlert.ftl");
+                HtmlConvertPdfHelper.renderTplFileToPDF("预警导出.pdf","pdfAlert.ftl",resultMap,response);
             } catch (Exception e) {
               log.error(e.getMessage(),e);
             }
diff --git a/dk-modules/business/src/main/resources/templates/pdfAlert.ftl b/dk-modules/business/src/main/resources/templates/pdfAlert.ftl
index 7cc75f2..2e9d77d 100644
--- a/dk-modules/business/src/main/resources/templates/pdfAlert.ftl
+++ b/dk-modules/business/src/main/resources/templates/pdfAlert.ftl
@@ -85,12 +85,12 @@
                 <td style="height: 50px;">后期影像</td>
             </tr>
             <tr>
-                <td><img src="${item.maxImages}" alt="前期影像1" style="width: 330px; height: 290px;"/></td>
-                <td><img src="${item.images}" alt="前期影像2" style="width: 330px; height: 290px;"/></td>
+                <td><img src="${item.mateSourceImgUrl?if_exists}" alt="前期影像1" style="width: 330px; height: 290px;"/></td>
+                <td><img src="${item.images?if_exists}" alt="前期影像2" style="width: 330px; height: 290px;"/></td>
             </tr>
             <tr>
-                <td><img src="${item.maxMateSourceImgUrl}" alt="后期影像1" style="width: 330px; height: 290px;"/></td>
-                <td><img src="${item.mateSourceImgUrl}" alt="后期影像2" style="width: 330px; height: 290px;"/></td>
+                <td><img src="${item.maxMateSourceImgUrl?if_exists}" alt="后期影像1" style="width: 330px; height: 290px;"/></td>
+                <td><img src="${item.maxImages?if_exists}" alt="后期影像2" style="width: 330px; height: 290px;"/></td>
             </tr>
             </tbody>
         </table>