diff --git a/src/components/Pdf/index.d.ts b/src/components/Pdf/index.d.ts
index ac549ac..cb8cc2c 100644
--- a/src/components/Pdf/index.d.ts
+++ b/src/components/Pdf/index.d.ts
@@ -1,4 +1,4 @@
-import type { CSSProperties, FC } from "react";
+import type { CSSProperties, FC, ReactNode } from "react";
 
 export interface PdfProps {
   /** pdf 文件地址 */
@@ -15,6 +15,8 @@ export interface PdfProps {
   inline?: boolean;
   /** 内联模式下的样式 */
   style?: CSSProperties;
+  /** 弹窗底部额外的按钮 */
+  extraButtons?: ReactNode;
 }
 
 declare const Pdf: FC<PdfProps>;
diff --git a/src/components/Pdf/index.js b/src/components/Pdf/index.js
index 1922600..6650654 100644
--- a/src/components/Pdf/index.js
+++ b/src/components/Pdf/index.js
@@ -20,6 +20,7 @@ function Pdf(props) {
     inline = false,
     title = "PDF预览",
     style = {},
+    extraButtons,
   } = props;
 
   const fileUrl = getFileUrl();
@@ -117,6 +118,7 @@ function Pdf(props) {
             {isFullscreen ? "退出全屏" : "全屏"}
           </Button>,
           <Button key="download" type="primary" onClick={onDownloadFile}>下载</Button>,
+          ...(extraButtons || []),
         ]}
       >
         {renderPdfContent()}