Merge multiple PDF files with CustomJS API

This n8n template demonstrates how to download multiple PDF files from public URLs and merge them into a single PDF using the PDF Toolkit from www.customjs.space. @custom-js/n8n-nodes-pdf-toolkit-v2 What this workflow does Downloads each PDF using an HTTP Request. Populates files into an array with Merge node from n8n. Merges all downloaded PDFs using the Merge PDF node from the @custom-js/n8n-nodes-pdf-toolkit-v2. Writes the final merged PDF to disk. Requirements CustomJS API key for merging multiple PDF files. PDF files to be merged to be converted into a PDF Workflow Steps: Manual Trigger: Runs with user interaction. HTTP Request Node For PDF Download: Pass urls for PDF files to merge. Me

Help me set up the n8n workflow "Merge multiple PDF files with CustomJS API" (https://n8n.io/workflows/3873). It uses: HTTP Request. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.