diff --git a/examples/PASSSEAL-000001.png b/examples/PASSSEAL-000001.png
index 6b8f32b..a509202 100644
--- a/examples/PASSSEAL-000001.png
+++ b/examples/PASSSEAL-000001.png
Binary files differ
diff --git a/examples/PASSSEAL-000002.png b/examples/PASSSEAL-000002.png
index 71676a5..2a6d300 100644
--- a/examples/PASSSEAL-000002.png
+++ b/examples/PASSSEAL-000002.png
Binary files differ
diff --git a/passwordseal.tex b/passwordseal.tex
index c8224c6..7a7cff9 100644
--- a/passwordseal.tex
+++ b/passwordseal.tex
@@ -11,22 +11,23 @@
 %\begin{document}
 %\begin{tikzpicture}[remember picture, overlay, shift=(current page.north west)]
 	%\tikzset{every node/.style={draw}}
-	\node [fit={(0,-2cm) ($(current page.south east) - (0,-5mm)$)}, fill=gray,inner sep=0pt, minimum width=3in] (sealarea) {};
+%\tikzset{example/.style={black!25}}
+	\node [fit={(0.5in,-2cm) ($(current page.south east) - (0.5in,-5mm)$)},example,inner sep=0pt,minimum width=3in] (sealarea) {};
 	\path (current page.north) -- (sealarea.north)
 		node[midway,align=left,text width=3in] (title) {%
 			{\centering\sffamily\Large{天空工场新人密码封} \\
 			\rmfamily\tiny SKYWORKS NEW MEMBER'S PASSWORD SEAL \par}
 			{\textbf{姓名：}realname}
 		};
-	\node [anchor=north west] (logo) at (current page.north west |- title.north) {\includegraphics[width=1.3in]{20110623skyworkslogo.eps}};
+	\node [anchor=north west,xshift=0.5in] (logo) at (current page.north west |- title.north) {\includegraphics[width=1.3in]{20110623skyworkslogo.eps}};
 	\node [draw,align=center,font=\sffamily,xshift=2in] (inperson) at (title) {本人\\亲启};
 	\node [anchor=south east] (id) at (title.south east) {\textbf{学号：}\texttt{studentid}};
 	\node [anchor=north west,yshift=-5mm] (un) at (title.south west) {\textbf{用户名：}\texttt{username}};
 	\node [anchor=west] (pw) at (id.west |- un.east) {\textbf{密码：}\texttt{password}};
-	\node [anchor=north east] (qr) at (sealarea.north east) {\qrcode[height=2.048cm]{https://thu-skyworks.org/reset}};
+	\node [anchor=north east,inner sep=10pt] (qr) at (sealarea.north east) {\qrcode[height=1.49cm,level=L]{https://thu-skyworks.org/reset}};
 	\path (un.south west) -- (id.east |- un.south) node[midway,anchor=north,font=\footnotesize] 
 		{请扫右侧二维码进入帐号激活页面，在“域\textbackslash 用户名：”中填入\texttt{thu-skyworks\textbackslash username}};
-	\node [anchor=south,font=\small] (wifi) at (sealarea.south) {%
+	\node [anchor=south,font=\small,yshift=9pt] (wifi) at (sealarea.south) {%
 			\textbf{WiFi SSID：} \texttt{skyworks\_cisco\{,\_2.4\}}\hspace{1in}
 			\textbf{密码：} \texttt{wifipw}
 		};