Merge Multiple PDFs from URLs with CustomJS API
Downloads PDFs from public URLs, merges them into a single file using CustomJS PDF Toolkit, and saves to disk. Ideal for automating document consolidation in self-hosted n8n.
This workflow automates the process of downloading multiple PDF files from public URLs and merging them into one cohesive PDF using the @custom-js/n8n-nodes-pdf-toolkit community node. It starts with a Manual Trigger, fetches PDFs via HTTP Requests, combines them into an array with a Merge node, and performs the merge operation requiring a CustomJS API key. The final output is written to disk, supporting files up to 6MB or via URL arrays for larger sizes.
Benefits include eliminating manual PDF merging tools, saving time on repetitive tasks like combining reports, invoices, or contracts. It's perfect for self-hosted n8n users needing scalable document automation without desktop software. Requires CustomJS signup for API key credentials.
Use cases: Generate unified client reports from multiple sources, archive email attachments into one file, or preprocess documents for CRM uploads. Enhances productivity in document-heavy workflows like legal, finance, or marketing teams.
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How to import this workflow into n8n
- 1Purchase or download the workflow to get the n8n workflow JSON file.
- 2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
- 3Open each node marked with a credential warning and connect your own accounts and API keys.
- 4Run the workflow once manually to verify the data flow, then toggle it to Active.
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