diff --git a/src/renderer/src/utils/tool.js b/src/renderer/src/utils/tool.js
index c42f2c8..76c0d5a 100644
--- a/src/renderer/src/utils/tool.js
+++ b/src/renderer/src/utils/tool.js
@@ -31,7 +31,8 @@ export const localStore = store.localStore
 
 // 暴露Store存储对象
 export const Store = store
-
+// 延时
+const sleep = ms => new Promise(resolve => setTimeout(resolve, ms))
 /**
  * 获取静态资源，开发和生产环境
  * @param {*} url
@@ -270,6 +271,15 @@ const eventHandles = (type, win) => {
         winPdf=null
         win&&win.destroy()
        })
+      
+       // 监听窗口的激活事件
+       win.on('focus', async () => {
+        toolState.isPdfWin=true
+        await  sleep(20) // 延时
+        toolState.showBoardAll=false //恢复默认值
+        await sleep(50) // 延时
+         
+      });
        const on = {
         onClosed: () => {
           Remote.ipcMain.removeHandler('open-PDF:minimize')