Carbone
Template-based document generation engine that renders DOCX, XLSX, ODP, and PDF files by merging JSON data into Office document templates using a simple mustache-like syntax, available as a self-hosted library or cloud API.
DocRaptor
HTML-to-PDF API powered by Prince XML, producing high-quality, CSS-compliant PDFs from HTML templates, particularly strong for complex paged media with headers, footers, page numbers, and print CSS.
Browserless (Headless Chrome API)
Hosted headless Chrome service with REST API and WebSocket connections for Puppeteer/Playwright, enabling PDF generation, screenshots, web scraping, and browser automation without managing Chrome infrastructure.
PPTAgent
Agentic framework that automatically generates complete PowerPoint presentations from documents, research topics, or freeform prompts, with reflective design capabilities and text-to-image asset generation.