Download and merge multiple PDFs from URLs with the 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 What this workflow does - Defines an array of PDF URLs. - Splits the array to process each URL individually. - Downloads each PDF using an HTTP Request. - Merges all downloaded PDFs using the Merge PDF node from the @custom-js/n8n-nodes-pdf-toolkit. - Writes the final merged PDF to disk. Requirements A free CustomJS account. An API Key saved in n8n as credentials of type CustomJS account. Notice Community nodes can only be installed on self-hosted instances of n8n. Usage Get API key from customJS - Sign up to customJS platform. - Navigate to your profile page - Press "Show" button to get API key Set Credentials for CustomJS API on n8n Copy and paster your API key generated from CustomJS here. Design workflow - A Manual Trigger for starting workflow. - A code node that returns URLs of PDF files as an array - Split Out node for concurrent processing - HTTP node for downloading PDF file locally - Merge PDFs node for merging files - Write to Disk node for saving merged PDF file. You can replace logic for triggering and returning results. For example, you can trigger this workflow by calling a webhook and get a result as a response from webhook. Simply replace Manual Trigger and Write to Disk nodes. Perfect for - Bundling reports or invoices. - Generating document sets from external sources. - Automating PDF handling without writing custom code.