diff --git a/LatestVersion.json b/LatestVersion.json
index ebad8fe..aeb71ec 100644
--- a/LatestVersion.json
+++ b/LatestVersion.json
@@ -1,8 +1,8 @@
 {
   "AppName": "MarkDownEditor",
   "LatestVersion": {
-    "Version": "0.3.7.0",
-    "UpdateTime": "2016/3/16",
-    "Description": "1. Fix a bug. ( Can't save css file state when restart );  2. Update some dependent library"
+    "Version": "0.3.8.0",
+    "UpdateTime": "2016/8/15",
+    "Description": "1. Fix a bug. ( export markdown to pdf/image failed );  2. Add mathjax support; 3. Fix a crash bug"
   }
 }
\ No newline at end of file
diff --git a/MarkDownEditor.Setup/Product.wxs b/MarkDownEditor.Setup/Product.wxs
index 92198a5..543d750 100644
--- a/MarkDownEditor.Setup/Product.wxs
+++ b/MarkDownEditor.Setup/Product.wxs
@@ -180,6 +180,8 @@
         <File Id="MarkDownEditor.exe.config" Name="MarkDownEditor.exe.config" Source="$(var.MarkDownEditor_TargetDir)MarkDownEditor.exe.config" />
         <File Id="CefSharp.BrowserSubprocess.exe" Name="CefSharp.BrowserSubprocess.exe" Source="$(var.MarkDownEditor_TargetDir)CefSharp.BrowserSubprocess.exe" />
         <File Id="pandoc.exe" Name="pandoc.exe" Source="$(var.MarkDownEditor_TargetDir)pandoc.exe" />
+        <File Id="WkHtmlToImageWrapper.exe" Name="WkHtmlToImageWrapper.exe" Source="$(var.MarkDownEditor_TargetDir)WkHtmlToImageWrapper.exe" />
+        <File Id="WkHtmlToPdfWrapper.exe" Name="WkHtmlToPdfWrapper.exe" Source="$(var.MarkDownEditor_TargetDir)WkHtmlToPdfWrapper.exe" />
 
         <File Id="devtools_resources.pak" Name="devtools_resources.pak" Source="$(var.MarkDownEditor_TargetDir)devtools_resources.pak" />
         <File Id="cef.pak" Name="cef.pak" Source="$(var.MarkDownEditor_TargetDir)cef.pak" />
diff --git a/MarkDownEditor/App.config b/MarkDownEditor/App.config
index 2142bac..8c0e116 100644
--- a/MarkDownEditor/App.config
+++ b/MarkDownEditor/App.config
@@ -71,7 +71,7 @@
                 <value>1</value>
             </setting>
             <setting name="ShowMathJax" serializeAs="String">
-                <value>False</value>
+                <value>True</value>
             </setting>
         </MarkDownEditor.Properties.Settings>
     </userSettings>
diff --git a/MarkDownEditor/Properties/Settings.Designer.cs b/MarkDownEditor/Properties/Settings.Designer.cs
index 24fb9e5..bf52243 100644
--- a/MarkDownEditor/Properties/Settings.Designer.cs
+++ b/MarkDownEditor/Properties/Settings.Designer.cs
@@ -271,7 +271,7 @@ public int CSSDark {
         
         [global::System.Configuration.UserScopedSettingAttribute()]
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
-        [global::System.Configuration.DefaultSettingValueAttribute("False")]
+        [global::System.Configuration.DefaultSettingValueAttribute("True")]
         public bool ShowMathJax {
             get {
                 return ((bool)(this["ShowMathJax"]));
diff --git a/MarkDownEditor/Properties/Settings.settings b/MarkDownEditor/Properties/Settings.settings
index b1b252e..b178921 100644
--- a/MarkDownEditor/Properties/Settings.settings
+++ b/MarkDownEditor/Properties/Settings.settings
@@ -66,7 +66,7 @@
       <Value Profile="(Default)">1</Value>
     </Setting>
     <Setting Name="ShowMathJax" Type="System.Boolean" Scope="User">
-      <Value Profile="(Default)">False</Value>
+      <Value Profile="(Default)">True</Value>
     </Setting>
   </Settings>
 </SettingsFile>
\ No newline at end of file