Merge Multiple PDF Files with CustomJS API

📎 Merge multiple PDFs into one—fully automated in your self-hosted n8n.

This automation downloads multiple PDF files, combines them into a single document using a custom community node, and saves the final file locally. It’s perfect for organizing invoices, combining reports, or bundling documents on the fly—without manual effort.

⚠️ Requires a self-hosted n8n instance (community nodes not supported in cloud version).

What it does:

📥 Downloads multiple PDF files via HTTP Request
🗃️ Groups files into an array for processing
🧩 Merges all PDFs using @custom-js/n8n-nodes-pdf-toolkit
💾 Saves the final merged PDF to disk
📌 Supports arrays of URLs (for large files over 6MB)

✅ Setup guide & importable automation included — up and running in minutes!

Need help installing community nodes or setting up CustomJS? We offer full configuration and testing for a one-time fee.