You can click "Generate or Export HTML" and then "Download as ZIP" to save a ZIP file containing the HTML and other source documents, like images. You can show your template by opening the HTML document.
If you want it as a PDF, open the HTML document in a web browser like Chrome, click "Print" and choose the option to save it as a PDF. Be sure to check the PDF carefully, as PDF files don't always render HTML perfectly. We recommend this option only if you need to show it to a colleague or team member.