March 1, 2026 8 min read

    How to Split PDF in n8n (Pages, Ranges, and Chunks)

    Automate PDF splitting inside n8n for extraction, routing, and downstream processing.

    Splitting PDFs is critical for KYC, legal, onboarding, and claims workflows where only selected pages are needed.

    Split modes you can automate

    • pages: explicit ranges like 1-3,5
    • each: each page as separate output
    • chunks: fixed page groups

    Workflow pattern

    Webhook trigger → Validate file → Split API → Branch by output type → Send/store result

    POST /api/v1/split/pdf
    {
      "url": "https://.../document.pdf",
      "mode": "pages",
      "pages": "1-3,5",
      "output": "url"
    }

    n8n reliability tips

    • Guard against invalid page ranges before API call
    • Attach source metadata to each split output
    • Use queue mode for high-volume jobs

    Conclusion

    For stable split workflows, validate inputs early and standardize mode selection. See Split PDF API for endpoint details.