diff --git a/jodconverter-web/src/main/resources/web/officePicture.ftl b/jodconverter-web/src/main/resources/web/officePicture.ftl
index 47aafe4f..11c13889 100644
--- a/jodconverter-web/src/main/resources/web/officePicture.ftl
+++ b/jodconverter-web/src/main/resources/web/officePicture.ftl
@@ -25,7 +25,7 @@
     </#list>
 </div>
 <#--<img src="images/right.png" style="position: fixed; cursor: pointer; top: 40%; right: 60px; z-index: 999;" alt="使用PDF预览" title="使用PDF预览" onclick="changePreviewType('pdf')"/>-->
-<span class="fa fa-file-pdf-o fa-5x" style="position: fixed; cursor: pointer; top: 40%; right: 50px; z-index: 999;" title="使用PDF预览" onclick="changePreviewType('pdf')"></span>
+<span class="fa fa-file-pdf-o fa-4x" style="position: fixed; cursor: pointer; top: 40%; right: 50px; z-index: 999;" title="使用PDF预览" onclick="changePreviewType('pdf')"></span>
 <script>
     window.onload=checkImgs;
     window.onscroll = throttle(checkImgs);
diff --git a/jodconverter-web/src/main/resources/web/pdf.ftl b/jodconverter-web/src/main/resources/web/pdf.ftl
index 0f621621..6d035d02 100644
--- a/jodconverter-web/src/main/resources/web/pdf.ftl
+++ b/jodconverter-web/src/main/resources/web/pdf.ftl
@@ -20,7 +20,7 @@
     <iframe src="" width="100%" frameborder="0"></iframe>
 
 <#--    <img src="images/left.png" style="position: fixed; cursor: pointer; top: 40%; right: 60px; z-index: 999;" alt="使用图片预览" title="使用图片预览" onclick="goForImage()"/>-->
-    <span class="fa fa-file-image-o fa-5x" style="position: fixed; cursor: pointer; top: 40%; right: 50px; z-index: 999;" title="使用图片预览" onclick="goForImage()"></span>
+    <span class="fa fa-file-image-o fa-4x" style="position: fixed; cursor: pointer; top: 40%; right: 50px; z-index: 999;" title="使用图片预览" onclick="goForImage()"></span>
 
 
 </body>