Simon Willison has adapted the open-source LiteParse PDF text extraction tool to run entirely in the browser, using PDF.js and Tesseract.js for OCR. The tool focuses on spatial text parsing to handle complex layouts without AI, improving reliability for RAG applications. This enables client-side PDF processing without server dependencies.
Background
PDF text extraction traditionally relies on server-side tools or AI models, but browser-based solutions are emerging for client-side processing. LiteParse originally provided CLI-based spatial text parsing for structured PDF content extraction.
- Source
- Simon Willison
- Published
- Apr 24, 2026 at 05:54 AM
- Score
- 6.0 / 10