Introduction

Managing multiple PDFs can be a hassle, especially when you need to merge them into a single document. With n8n and the PDF Toolkit node, you can automate this process effortlessly. This guide will walk you through how to merge multiple PDF files into one using n8n.

n8n Template

Link to n8n Workflow

Why Merge PDFs in n8n?

• Automate document processing without manual intervention
• Streamline report generation, invoicing, and contract management
• Easily combine PDFs received from multiple sources

Prerequisites

• A self-hosted n8n instance
• The CustomJS PDF Toolkit node installed
• Multiple PDF files to merge

Workflow Overview

The workflow consists of the following steps:

1. Webhook or File Upload – Capture PDF files from an external source
2. Merge PDF Node – Use the PDF Toolkit node to merge files
3. Store or Send PDF – Save the merged PDF to cloud storage or send it via email

Step-by-Step Guide

1. Capture PDFs in n8n

Use a Webhook node to receive files dynamically or a Read/Write files from Disk to fetch stored PDFs.

2. Merge PDFs Using PDF Toolkit

• Add the Merge PDF node from the PDF Toolkit
• Select multiple PDF inputs

3. Save or Send the Merged PDF

• Store the merged file in Read/Write files from Disk

Final Thoughts

With n8n, merging PDFs is automated, reducing manual work and improving efficiency. Whether you're dealing with invoices, reports, or forms, this workflow can save time and streamline your document management.