From a40cce6ec3a5803ba9c7bf1b31117bac64089ddf Mon Sep 17 00:00:00 2001
From: Alexander Wunschik <alexander.wunschik@fullstax.de>
Date: Fri, 12 Aug 2022 02:33:19 +0200
Subject: [PATCH] v4.0.0

---
 README.md         | 17 ++++++++++-------
 package-lock.json |  2 +-
 package.json      |  2 +-
 3 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/README.md b/README.md
index 4d354e8..0244c91 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,9 @@
 # Description
 
-This node.js library can **merge multiple PDF documents**, or parts of them, to one new PDF document. It's only dependency is [pdfjs](https://www.npmjs.com/package/pdfjs) so it can run in any javascript-only environnement **without any external dependencies**.
+This node.js library can **merge multiple PDF documents**, or parts of them, to one new PDF document. It's only dependency is [pdf-lib](https://pdf-lib.js.org/) so it can run in any javascript-only environnement **without any external dependencies**.
+
+> If you are searching for the legacy version based on 
+[pdfjs](https://www.npmjs.com/package/pdfjs) please install a [v3 release](https://github.com/nbesli/pdf-merger-js/releases?q=v3&expanded=true). Since [v4](https://github.com/nbesli/pdf-merger-js/releases?q=v4&expanded=true) we use [pdf-lib](https://pdf-lib.js.org/) instead.
 
 This library is inspired by the [PHP library PDFMerger](https://github.com/myokyawhtun/PDFMerger) and has a very similar API.
 
@@ -16,12 +19,12 @@ const PDFMerger = require('pdf-merger-js');
 var merger = new PDFMerger();
 
 (async () => {
-  merger.add('pdf1.pdf');  //merge all pages. parameter is the path to file and filename.
-  merger.add('pdf2.pdf', [2]); // merge only page 2
-  merger.add('pdf2.pdf', [1, 3]); // merge the pages 1 and 3
-  merger.add('pdf2.pdf', '4, 7, 8'); // merge the pages 4, 7 and 8
-  merger.add('pdf3.pdf', '1 to 2'); //merge pages 1 to 2
-  merger.add('pdf3.pdf', '3-4'); //merge pages 3 to 4
+  await merger.add('pdf1.pdf');  //merge all pages. parameter is the path to file and filename.
+  await merger.add('pdf2.pdf', [2]); // merge only page 2
+  await merger.add('pdf2.pdf', [1, 3]); // merge the pages 1 and 3
+  await merger.add('pdf2.pdf', '4, 7, 8'); // merge the pages 4, 7 and 8
+  await merger.add('pdf3.pdf', '1 to 2'); //merge pages 1 to 2
+  await merger.add('pdf3.pdf', '3-4'); //merge pages 3 to 4
 
   await merger.save('merged.pdf'); //save under given name and reset the internal document
 })();
diff --git a/package-lock.json b/package-lock.json
index a996437..a188766 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "pdf-merger-js",
-  "version": "3.4.0",
+  "version": "4.0.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index cb5636c..44bc9d6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pdf-merger-js",
-  "version": "3.4.0",
+  "version": "4.0.0",
   "description": "merge multible PDF documents, or parts of them, to a new PDF document",
   "main": "./index.js",
   "types": "./index.d.ts",