diff --git a/components/Pdf/index.js b/components/Pdf/index.js
index 857070b..3dae089 100644
--- a/components/Pdf/index.js
+++ b/components/Pdf/index.js
@@ -53,7 +53,7 @@ function Pdf(props) {
   const renderPdfContent = () => (
     <>
       {loading && (
-        <div style={{ display: "flex", justifyContent: "center", alignItems: "center", height: "80vh" }}>
+        <div style={{ display: "flex", justifyContent: "center", alignItems: "center", height: "72vh" }}>
           <Spin size="large" />
         </div>
       )}
@@ -110,7 +110,7 @@ function Pdf(props) {
           >
             关闭
           </Button>,
-          <Button
+          !loading && <Button
             key="fullScreen"
             onClick={() => {
               isFullscreen ? exitFullscreen() : enterFullscreen();