This n8n workflow automates the process of uploading a PDF file, converting it to HTML, extracting URLs from the content, and retrieving the HTML version for further use. The workflow begins with a form trigger that allows users to upload a PDF, which is then sent to PDF.co for conversion to HTML. The HTML URL is fetched via an HTTP request, and a JavaScript code node scans the HTML content to extract all embedded URLs using regex. Throughout the process, sticky notes are added as visual guides, making the workflow understandable. This automation is practical for scenarios such as processing uploaded PDFs, extracting links for SEO analysis, or content scraping tasks.