Underleaf

AI-powered document editor that turns your work into beautiful, polished PDFs with composable blocks.

Underleaf is an AI-powered document editor designed to help students, professionals, and writers create beautifully formatted PDFs with ease. Users can start from a pre-built template or blank canvas, arranging text, code, math, charts, and screenshots using 24 specialized composable block types. Documents can be exported as polished PDFs with custom paper sizes and margins, or as fully formatted Word files. Underleaf supports importing DOCX and PDF files, PDF compression, and an AI agent that interprets plain English instructions to build, rewrite, and restructure content. Users review AI-suggested changes before applying them, maintaining full control over the final output.