diff --git a/src/main/java/com/sztzjy/linkCommerce/util/pdfUtils/PDFConvertUtil.java b/src/main/java/com/sztzjy/linkCommerce/util/pdfUtils/PDFConvertUtil.java
index 918b2a7..bf4f90e 100644
--- a/src/main/java/com/sztzjy/linkCommerce/util/pdfUtils/PDFConvertUtil.java
+++ b/src/main/java/com/sztzjy/linkCommerce/util/pdfUtils/PDFConvertUtil.java
@@ -129,6 +129,10 @@ public final class PDFConvertUtil {
      * @param outputStream pdf文件输出流
      **/
     public static boolean wordToPdfByAspose(InputStream inputStream, OutputStream outputStream) {
+        return convertWordToPdfByAspose(inputStream, outputStream);
+    }
+
+    private static boolean convertWordToPdfByAspose(InputStream inputStream, OutputStream outputStream) {
 
         // 验证License 若不验证则转化出的pdf文档会有水印产生
         if (!getLicense()) {
@@ -140,6 +144,9 @@ public final class PDFConvertUtil {
             // 将源文件保存在com.aspose.words.Document中，具体的转换格式依靠里面的save方法
             com.aspose.words.Document doc = new com.aspose.words.Document(inputStream);
             doc.setFontSettings(fontSettings);
+            // Blob URL 预览时浏览器会读取 PDF 的文档标题。清除 Word 原始标题，
+            // 避免某些文档的二进制标题被显示成 yAAAA... 之类的乱码。
+            doc.getBuiltInDocumentProperties().setTitle("reference-answer");
 
             // 全面支持DOC, DOCX, OOXML, RTF HTML, OpenDocument, PDF,EPUB, XPS, SWF 相互转换
             doc.save(outputStream, SaveFormat.PDF);