diff --git a/index.ts b/index.ts
index 8363be1..8fc13a4 100644
--- a/index.ts
+++ b/index.ts
@@ -5,8 +5,8 @@ import jsPDF from 'jspdf'
 let vxetable: VXETableCore
 
 declare module 'vxe-table' {
-  namespace VxeTablePropTypes {
-    interface ExportConfig {
+  export namespace VxeTablePropTypes {
+    export interface ExportConfig {
       fontName?: string;
     }
   }
@@ -174,23 +174,24 @@ function pluginSetup (options: VXETablePluginExportPDFOptions) {
 }
 
 /**
- * 基于 vxe-table 表格的增强插件，支持导出 pdf 格式
+ * 基于 vxe-table 表格的扩展插件，支持导出 pdf 格式
  */
 export const VXETablePluginExportPDF = {
   setup: pluginSetup,
-  install (vxetablecore: VXETableCore, options?: VXETablePluginExportPDFOptions) {
-    const { setup, interceptor } = vxetablecore
-
-    vxetable = vxetablecore
+  install (vxetable: VXETableCore, options?: VXETablePluginExportPDFOptions) {
+    // 检查版本
+    if (!/^(4)\./.test(vxetable.version)) {
+      console.error('[vxe-table-plugin-export-pdf] Version vxe-table 4.x is required')
+    }
 
-    setup({
+    vxetable.setup({
       export: {
         types: {
           pdf: 1
         }
       }
     })
-    interceptor.mixin({
+    vxetable.interceptor.mixin({
       'event.export': handleExportEvent
     })
     if (options) {
diff --git a/package.json b/package.json
index 7e4ada4..dcde6d9 100644
--- a/package.json
+++ b/package.json
@@ -1,11 +1,12 @@
 {
   "name": "vxe-table-plugin-export-pdf",
-  "version": "3.0.6",
-  "description": "基于 vxe-table 的表格插件，支持导出 pdf 格式",
+  "version": "3.1.0",
+  "description": "基于 vxe-table 表格的扩展插件，支持导出 pdf 格式",
   "scripts": {
     "lib": "gulp build"
   },
   "files": [
+    "types",
     "fonts/source-han-sans-bold.js",
     "fonts/source-han-sans-normal.js",
     "dist",
@@ -16,7 +17,7 @@
   "unpkg": "dist/index.umd.js",
   "jsdelivr": "dist/index.umd.js",
   "style": "dist/style.css",
-  "typings": "index.ts",
+  "typings": "types/index.d.ts",
   "devDependencies": {
     "@babel/core": "^7.12.3",
     "@babel/plugin-transform-runtime": "^7.12.1",
@@ -52,11 +53,11 @@
     "sass": "^1.55.0",
     "typescript": "^4.6.4",
     "vue": "^3.3.4",
-    "vxe-table": "^4.4.6",
-    "xe-utils": "^3.5.11"
+    "vxe-table": "^4.5.10",
+    "xe-utils": "^3.5.13"
   },
   "peerDependencies": {
-    "vxe-table": "^4.0.27"
+    "vxe-table": "^4.5.0"
   },
   "repository": {
     "type": "git",
diff --git a/types/index.d.ts b/types/index.d.ts
new file mode 100644
index 0000000..276ccf9
--- /dev/null
+++ b/types/index.d.ts
@@ -0,0 +1,22 @@
+import { VXETableCore } from 'vxe-table'
+
+interface VXETablePluginExportPDFFonts {
+  fontName: string;
+  fontStyle?: 'normal';
+  fontUrl: string;
+}
+
+interface VXETablePluginExportPDFOptions {
+  fontName?: string;
+  fonts?: VXETablePluginExportPDFFonts[];
+  beforeMethod?: Function;
+}
+
+/**
+ * 基于 vxe-table 表格的扩展插件，支持导出 pdf 格式
+ */
+export declare const VXETablePluginExportPDF: {
+  install (vxetable: VXETableCore, options?: VXETablePluginExportPDFOptions): void
+}
+
+export default VXETablePluginExportPDF