diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 00000000..164b8201
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,172 @@
+declare module 'html-to-docx'
+{
+    interface Margins
+    {
+        /**
+         * top <Number> distance between the top of the text margins for the main document and the top of the page for all pages in this section in TWIP.
+         * Defaults to 1440. Supports equivalent measurement in pixel, cm or inch.
+         */
+        top: number;
+
+        /**
+         * right <Number> distance between the right edge of the page and the right edge of the text extents for this document in TWIP.
+         * Defaults to 1800. Supports equivalent measurement in pixel, cm or inch.
+         */
+        right: number;
+
+        /**
+         * bottom <Number> distance between the bottom of text margins for the document and the bottom of the page in TWIP.
+         * Defaults to 1440. Supports equivalent measurement in pixel, cm or inch.
+         */
+        bottom: number;
+
+        /**
+         * left <Number> distance between the left edge of the page and the left edge of the text extents for this document in TWIP.
+         * Defaults to 1800. Supports equivalent measurement in pixel, cm or inch.
+         */
+        left: number;
+
+        /**
+         * header <Number> distance from the top edge of the page to the top edge of the header in TWIP.
+         * Defaults to 720. Supports equivalent measurement in pixel, cm or inch.
+         */
+        header: number;
+
+        /**
+         * footer <Number> distance from the bottom edge of the page to the bottom edge of the footer in TWIP.
+         * Defaults to 720. Supports equivalent measurement in pixel, cm or inch.
+         */
+        footer: number;
+
+        /**
+         * gutter <Number> amount of extra space added to the specified margin, above any existing margin values. This setting is typically used when a document is being created for binding in TWIP.
+         * Defaults to 0. Supports equivalent measurement in pixel, cm or inch.
+         */
+        gutter: number;
+    }
+
+    interface Row
+    {
+        /**
+         * cantSplit <?Boolean> flag to allow table row to split across pages. Defaults to false.
+         */
+        cantSplit?: boolean;
+    }
+
+    interface Table
+    {
+        row?: Row;
+    }
+
+    export interface DocumentOptions
+    {
+        /**
+         * orientation <"portrait"|"landscape"> defines the general orientation of the document. Defaults to portrait.
+         */
+        orientation?: "portrait" | "landscape";
+
+        margins?: Margins
+
+        /**
+         * title <?String> title of the document.
+         */
+        title?: string;
+
+        /**
+         * subject <?String> subject of the document.
+         */
+        subject?: string;
+
+        /**
+         * creator <?String> creator of the document. Defaults to html-to-docx
+         */
+        creator?: string;
+
+        /**
+         * keywords <?Array<String>> keywords associated with the document. Defaults to ['html-to-docx'].
+         */
+        keywords?: string[];
+
+        /**
+         * description <?String> description of the document.
+         */
+        description?: string;
+
+        /**
+         * lastModifiedBy <?String> last modifier of the document. Defaults to html-to-docx.
+         */
+        lastModifiedBy?: string;
+
+        /**
+         * revision <?Number> revision of the document. Defaults to 1.
+         */
+        revision?: number;
+
+        /**
+         * createdAt <?Date> time of creation of the document. Defaults to current time.
+         */
+        createdAt?: Date;
+
+        /**
+         * modifiedAt <?Date> time of last modification of the document. Defaults to current time.
+         */
+        modifiedAt?: Date;
+
+        /**
+         * headerType <"default"|"first"|"even"> type of header. Defaults to default.
+         */
+        headerType?: "default" | "first" | "even";
+
+        /**
+         * header <?Boolean> flag to enable header. Defaults to false.
+         */
+        header?: boolean;
+
+        /**
+         * footerType <"default"|"first"|"even"> type of footer. Defaults to default.
+         */
+        footerType?: "default" | "first" | "even";
+
+        /**
+         * footer <?Boolean> flag to enable footer. Defaults to false.
+         */
+        footer?: boolean;
+
+        /**
+         * font <?String> font name to be used. Defaults to Times New Roman.
+         */
+        font?: string;
+
+        /**
+         * fontSize <?Number> size of font in HIP(Half of point). Defaults to 22. Supports equivalent measure in pt.
+         */
+        fontSize?: number;
+
+        /**
+         * complexScriptFontSize <?Number> size of complex script font in HIP(Half of point). Defaults to 22. Supports equivalent measure in pt.
+         */
+        complexScriptFontSize?: number;
+
+        table?: Table;
+
+        /**
+         * pageNumber <?Boolean> flag to enable page number in footer. Defaults to false. Page number works only if footer flag is set as true.
+         */
+        pageNumber?: boolean;
+
+        /**
+         * skipFirstHeaderFooter <?Boolean> flag to skip first page header and footer. Defaults to false.
+         */
+        skipFirstHeaderFooter?: boolean;
+    }
+
+    /**
+     * @param htmlString <String> clean html string equivalent of document content.
+     * @param headerHTMLString <String> clean html string equivalent of header. Defaults to <p></p> if header flag is true.
+     * @param documentOptions <DocumentOptions>
+     * @param footerHTMLString <String> clean html string equivalent of footer. Defaults to <p></p> if footer flag is true.
+     * @constructor
+     * @private
+     */
+   export default function HTMLtoDOCX(htmlString: string, headerHTMLString: string, documentOptions: DocumentOptions, footerHTMLString?: string): Promise<Buffer | Blob>;
+}
diff --git a/package.json b/package.json
index a2da6555..40ba5a22 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,7 @@
   ],
   "main": "dist/html-to-docx.umd.js",
   "module": "dist/html-to-docx.esm.js",
+  "types": "index.d.ts",
   "scripts": {
     "test": "npm run build && node example/example-node.js",
     "release": "standard-version",