and document previews

Box Document Previews is a high-fidelity rendering API that generates interactive, browser-based views for over 120 file formats without requiring native applications.

This technology converts complex file formats (including PDFs, Microsoft Office documents, and CAD drawings) into web-optimized assets using vector-based rendering. The system delivers crisp, searchable, and secure viewing experiences across all device types via a global CDN. Developers integrate the REST API to embed interactive viewers into custom applications: this setup eliminates local software requirements and prevents unauthorized file downloads.

https://www.box.com/platform/features/document-previews