Question: Can you recommend a tool that helps create interactive and secure digital documents with analytics to track engagement?

If you want to create interactive, secure digital documents with analytics to measure engagement, Turtl is a good option. The service lets you create engaging content without having to worry about design or programming, with features like a drag-and-drop editor, real-time editing and personalization that can create up to 25,000 variations of a single document. Turtl also integrates with common CRMs and marketing automation tools, so it can be used for lead generation and demand generation.

Another option is PageTiger, a design studio for creating interactive digital documents and presentations. It comes with AI-generated content and detailed analytics to measure engagement. PageTiger supports a range of interactive elements like videos, quizzes and charts, and has strong security controls like password protection and single sign-on. The analytics suite measures views, visits and reader engagement, so it's good for employee communications, onboarding, customer communications and stakeholder engagement.

If you want a more collaborative environment, Bit.ai could be the way to go. It's got advanced design abilities, powerful search and real-time collaboration abilities. Bit.ai also comes with AI-boosted writing, interactive living documents and smart editor tools. The service also has powerful tracking abilities, including real-time insights into how people are reading documents, so it's good for knowledge management and secure document sharing.

For a customizable and secure document sharing service, check out Papermark. This open-source service offers real-time analytics and AI-powered chat, along with several pricing tiers to accommodate different needs. Papermark can be self-hosted and has custom branding abilities, so it's a good option for startups, real estate and nonprofit organizations.