This article provides a complete, practical walkthrough of the Splitout Code Automation Webhook n8n agent. It connects HTTP Request, Webhook across approximately 1 node(s). Expect a Intermediate setup in 15-45 minutes. One‑time purchase: €29.

What This Agent Does

This agent orchestrates a reliable automation between HTTP Request, Webhook, handling triggers, data enrichment, and delivery with guardrails for errors and rate limits.

It streamlines multi‑step processes that would otherwise require manual exports, spreadsheet cleanup, and repeated API requests. By centralizing logic in n8n, it reduces context switching, lowers error rates, and ensures consistent results across teams.

Typical outcomes include faster lead handoffs, automated notifications, accurate data synchronization, and better visibility via execution logs and optional Slack/Email alerts.

How It Works

The workflow uses standard n8n building blocks like Webhook or Schedule triggers, HTTP Request for API calls, and control nodes (IF, Merge, Set) to validate inputs, branch on conditions, and format outputs. Retries and timeouts improve resilience, while credentials keep secrets safe.

Third‑Party Integrations

• HTTP Request
• Webhook

Import and Use in n8n

1. Open n8n and create a new workflow or collection.
2. Choose Import from File or Paste JSON.
3. Paste the JSON below, then click Import.
4. Show n8n JSON

   Title:
   Automating PDF Merging with n8n: A Workflow to Retrieve, Combine, and Store PDF Files
   
   Meta Description:
   Discover how to automate the process of downloading, merging, and saving PDF files using n8n. This no-code workflow demonstrates how to streamline document management with HTTP downloads, file handling, and PDF merging.
   
   Keywords:
   n8n workflow, PDF automation, merge PDF files, HTTP request, custom JS node, PDF toolkit, no-code automation, read/write files, n8n tutorial, document management
   
   Third-Party APIs Used:
   - None directly used for PDF generation; however, it utilizes:
     - External PDF URLs (e.g., W3.org, Intewa.com)
     - @custom-js/n8n-nodes-pdf-toolkit.mergePdfs (a custom node/credential for merging PDFs)
   
   Article:
   
   Automating Document Workflows: How to Merge PDFs with n8n in Minutes
   
   In today’s fast-paced digital environments, automating repetitive tasks can dramatically improve productivity. One such task—managing multiple PDF files—can consume time and effort, especially when documents come from diverse sources, must be merged, and securely stored for future access. Fortunately, tools like n8n make it possible to orchestrate such tasks with ease. This article will walk you through an n8n workflow that automatically downloads PDF files from URLs, merges them into a single file, and saves the final document locally.
   
   Let’s explore how this no-code automation works step-by-step.
   
   The Goal
   
   Our workflow takes two publicly available PDFs, merges them into one cohesive document, and writes the final product to disk. The steps include:
   
   - Triggering the flow manually.
   - Building an array of PDF URLs.
   - Fetching each PDF using HTTP requests.
   - Merging the PDFs.
   - Writing and reading the final PDF file locally.
   
   This is not only a fantastic example for document management automation but also a great foundation for more complex scenarios, such as archiving reports or distributing unified files across teams.
   
   Workflow Breakdown
   
   Here’s a closer look at each component powering this PDF automation:
   
   1. Manual Trigger
   Node: When clicking ‘Test workflow’
   
   Everything begins with a simple manual trigger. This allows a user to test the workflow on demand from within the n8n editor. It's particularly helpful during development or for workflows that don't run on a schedule or webhook.
   
   2. Define PDF Array
   Node: PDF Array (Code Node)
   
   A bit of JavaScript initializes an array of PDF links:
   ```javascript
   return { data: [
     "https://www.intewa.com/fileadmin/documents/pdf-file.pdf",
     "https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf"
   ] }
   ```
   
   This node feeds a list of PDF URLs downstream. You could easily adapt this to pull PDFs from an API, a database, or dynamically via another workflow node.
   
   3. Split the Array
   Node: Split Out
   
   The Split Out node takes the array and breaks each element into a separate item—one per URL. This is essential because the next step will process each PDF link individually.
   
   4. Download PDFs
   Node: HTTP Request1
   
   This node fetches the actual PDF data by calling each URL. It retrieves the file content using HTTP GET requests, turning linked content into binary data usable in later steps.
   
   5. Merge PDFs
   Node: Merge PDF (@custom-js/n8n-nodes-pdf-toolkit.mergePdfs)
   
   Here's where the magic happens. Using a custom n8n community node, the flow merges all the individual PDFs into a single document. This node collects the binary inputs and stitches them together into one unified file.
   
   It relies on credentials for a "CustomJS account", indicating a plug-in or third-party PDF toolkit doing the heavy lifting behind the scenes.
   
   6. Save to Disk
   Node: Read/Write Files from Disk2
   
   Once the PDF is merged, the file is written to disk using the Read/Write node. In this example, it's saved as test.pdf. The system must have file-write permissions, so this works well on local or server installations of n8n.
   
   7. Optional: Read File Again
   Node: Read/Write Files from Disk3
   
   This companion node simply reads back the file from disk—perhaps for review, validation, or sending it elsewhere (though in this workflow it's a terminating step). You could easily add an “Email PDF” node or upload to Dropbox, Google Drive, or an S3 bucket from here.
   
   Key Benefits of This Workflow
   
   - No-Code Setup: Everything is done via drag-and-drop with minimal scripting.
   - Expandable: You can feed in as many PDFs as needed or connect to other systems.
   - Reusable: Works as a blueprint for archiving financial reports, invoices, resumes, etc.
   - Fast Testing: Manual trigger enables quick iterations before deployment.
   
   Security and Scalability Considerations
   
   Since this flow deals with external URLs and writes to disk, it’s important to ensure:
   
   - PDF sources are trusted, as parsing malicious PDFs could pose a risk.
   - Proper file permissions are configured in your environment.
   - Disk storage scales with the number of documents processed.
   
   You could further extend the workflow by:
   
   - Integrating user input from webforms.
   - Scheduling daily or weekly runs.
   - Emailing the merged PDF automatically to a distribution list.
   
   Conclusion
   
   Whether you're looking to merge reports, consolidate documentation, or streamline paperwork handling, n8n provides a powerful and elegant solution. By combining basic nodes like HTTP Request and File Write with custom modules for PDF manipulation, this workflow proves that automation doesn’t have to be complex.
   
   With minimal setup and no coding overhead, you've got a reliable system that takes care of document merging for you. Ready to take your first step in no-code automation? This PDF merging workflow is an excellent place to begin.
   
   Explore. Automate. Empower with n8n.

5. Set credentials for each API node (keys, OAuth) in Credentials.
6. Run a test via Execute Workflow. Inspect Run Data, then adjust parameters.
7. Enable the workflow to run on schedule, webhook, or triggers as configured.

Tips: keep secrets in credentials, add retries and timeouts on HTTP nodes, implement error notifications, and paginate large API fetches.

Validation: use IF/Code nodes to sanitize inputs and guard against empty payloads.

Why Automate This with AI Agents

AI‑assisted automations offload repetitive, error‑prone tasks to a predictable workflow. Instead of manual copy‑paste and ad‑hoc scripts, your team gets a governed pipeline with versioned state, auditability, and observable runs.

n8n’s node graph makes data flow transparent while AI‑powered enrichment (classification, extraction, summarization) boosts throughput and consistency. Teams reclaim time, reduce operational costs, and standardize best practices without sacrificing flexibility.

Compared to one‑off integrations, an AI agent is easier to extend: swap APIs, add filters, or bolt on notifications without rewriting everything. You get reliability, control, and a faster path from idea to production.

Best Practices

• Credentials: restrict scopes and rotate tokens regularly.
• Resilience: configure retries, timeouts, and backoff for API nodes.
• Data Quality: validate inputs; normalize fields early to reduce downstream branching.
• Performance: batch records and paginate for large datasets.
• Observability: add failure alerts (Email/Slack) and persistent logs for auditing.
• Security: avoid sensitive data in logs; use environment variables and n8n credentials.

FAQs

Can I swap integrations later? Yes. Replace or add nodes and re‑map fields without rebuilding the whole flow.

How do I monitor failures? Use Execution logs and add notifications on the Error Trigger path.

Does it scale? Use queues, batching, and sub‑workflows to split responsibilities and control load.

Is my data safe? Keep secrets in Credentials, restrict token scopes, and review access logs.