10 section
Document Processing
One chapter, because document parsing collapsed into a single question: rasterize the page and let a vision model read it, or keep maintaining an OCR pipeline?
What is in here
Vision-LLMs took over layout understanding, and this chapter is the accounting: what they get right that Tesseract never did, what they cost per page, and when a classical pipeline is still the correct answer. Read it before the Document Intelligence case study, which builds the production version of the pipeline described here.