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Merge PDFs

This workflow is designed to automatically download and merge multiple PDF files, ultimately generating a unified PDF file and saving it locally. Users only need to manually trigger the process to efficiently complete the tedious tasks of downloading, merging, and saving, significantly saving time and labor costs. It is suitable for scenarios such as enterprise document management, educational material organization, and document integration in professional fields. By automating the process, it enhances document processing efficiency and reduces the risk of human error.

Workflow Diagram
Merge PDFs Workflow diagram

Workflow Name

Merge PDFs

Key Features and Highlights

This workflow automatically downloads multiple PDF files and efficiently merges them into a single consolidated PDF document, which is then saved locally. It offers a high degree of automation and supports manual triggering to facilitate testing and practical application.

Core Problem Addressed

In daily office or business operations, it is often necessary to combine multiple independent PDF files into one document for archiving, sharing, or printing purposes. This workflow eliminates the cumbersome and inefficient manual process of downloading, merging, and saving PDF files by enabling one-click merging, thereby saving time and reducing labor costs.

Use Cases

  • Merging contracts, reports, invoices, and other PDF documents in corporate document management.
  • Combining multiple educational materials into a unified resource package for educational institutions.
  • Organizing evidence or billing documents in legal, financial, and other professional fields.
  • Any scenario requiring regular consolidation of multiple PDF files.

Main Workflow Steps

  1. Manual Trigger: The user initiates the workflow by clicking the “Test workflow” button.
  2. Download PDF Files: Two HTTP request nodes download two PDF files from specified URLs.
  3. Merge Files: The built-in merge node combines the two downloaded PDF files.
  4. PDF Merge Processing: A custom JavaScript node executes the PDF merging operation to ensure optimal merge quality.
  5. Write File to Disk: The merged PDF file is saved locally with the filename “test.pdf.”
  6. File Read Confirmation: The saved PDF file is read back to verify completeness and usability.

Systems or Services Involved

  • HTTP Request Nodes (for downloading PDFs from the internet)
  • Custom JavaScript PDF Toolkit (@custom-js/n8n-nodes-pdf-toolkit)
  • Local File Read/Write System (n8n’s built-in file read/write nodes)

Target Users and Value Proposition

This workflow is ideal for corporate users, administrative staff, finance personnel, legal advisors, educators, and others who frequently handle PDF file merging. It automates and simplifies the PDF merging process, enhances document processing efficiency, and reduces the risk of manual errors, making it a practical tool for improving office automation.

Merge PDFs