Quark Interactive Designer

Quark Interactive Designer ... tools that make QuarkXPress the world's premier design and page layout application. There's no need to learn a new authoring environment; interactivity and animation flow naturally from your existing QuarkXPress design skills.

Your interactive layouts can share content and design attributes with your Web and print layouts so you can create and publish coordinated Web, print, and SWF pieces all from within QuarkXPress.