!185 修复PDF解密加密文件 转换成功后台报错问题

Merge pull request !185 from 高雄/pdf2

server/src/main/java/cn/keking/service/FileHandlerService.java

@@ -264,7 +264,7 @@ public class FileHandlerService {
                 imageUrls.add(imageUrl);
             }
             try {
-                pdfReader =  new PdfReader(pdfFilePath);   //读取PDF文件
+                pdfReader =  new PdfReader(pdfFilePath,filePassword.getBytes());   //读取PDF文件
             } catch (Exception e) {  //获取异常方法 判断是否有加密字符串
                 Throwable[] throwableArray = ExceptionUtils.getThrowables(e);
                 for (Throwable throwable : throwableArray) {