diff --git a/README.md b/README.md
index d6748e0..cc503ce 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,39 @@
 # WV2PDF
-WebView2 Create PDF
 
-# build
-```
-set PYTHONIOENCODING=utf-8
-set PYTHONUTF8=1
-node-gyp configure
-node-gyp build
+Use WebView2 to Create PDF
+
+# Download
+
+ [Releases](https://github.com/xland/WV2PDF/releases)
+
+# Usage
 
+- Download [Service.exe](https://github.com/xland/WV2PDF/releases)
+- Start Service.exe
+- Then connect Service
+
+```javascript
+const WebSocket = require("ws");
+const ws = new WebSocket(`ws://127.0.0.1:8080`);
+let objs = [
+    { url: "https://www.baidu.com" }, 
+    { url: "https://www.cnblogs.com" }, 
+    { url: "https://www.csdn.net" }, 
+    { url: "https://www.oschina.net" }
+];
+ws.on("open", () => {
+  console.log("connected");
+  for (let obj of objs) {
+    ws.send(JSON.stringify(obj));
+  }
+});
+ws.on("message", (data) => {
+  let obj = JSON.parse(data.toString());
+  console.log("receive msg:", obj);
+});
+
+ws.on("close", () => console.log("conn closed"));
+ws.on("error", (err) => console.error("error:", err));
+```
 
-https://github.com/mutouyun/cpp-ipc
-```
\ No newline at end of file
+- The PDF file will be created in the current directory
\ No newline at end of file