Plain HTML site
Paste this into your site's <head> or <body>, and place the button where you want. Replace pk_YOUR_KEY with your client key.
<script src="https://penswork.com/cdn/paper-widget-v1.js"></script>
<script>
Penswork.init({ clientKey: 'pk_YOUR_KEY' });
</script>
<button onclick="Penswork.open()">Start a document</button>
Clicking the button opens the widget. The design (name, logo, color) follows your console settings — the code only needs the client key.