20ms把PDF变成Markdown！开源OCR神器快了近300倍

TL;DR - Firecrawl’s CTO announced OCR It, an open-source browser extension that converts image-based PDFs and other documents into AI-friendly text or Markdown locally. It reportedly processes a simple PDF in 20 ms—nearly 300× faster than Docling at comparable quality—but remains unreliable on complex layouts.

• Runs offline using bundled Tesseract, requires no API key, and requests site permissions only when needed.
• Supports Chrome and Firefox, with manual capture and an automatic screenshot–OCR–page-turn workflow capped at 300 pages.
• Users can review or reprocess individual pages, then copy the combined text or download it as a .txt file.
• Works best on clear, simply formatted documents; headings, footnotes, tables, formulas, and mixed layouts can reduce accuracy.