Skip to content

← All series & guides

Series

Vision, OCR, and document extraction from scratch

This path is for you if a photo of a receipt or a scanned contract needs to become text you can check, not a guess in a chat. It is the vision and document path: what the model can read, and where a human still has to look. No part is live on this page yet. Start with Practical AI for what not to paste, and come back when part 1 is up.

  1. 1 How OCR and AI turn photos of paper documents into useful text Build document capture as a pipeline: correct the image, detect text, then extract structure. Classic OCR still matters before any LLM reasons. Scheduled · November 4, 2026
  2. 2 AI vision models vs classic OCR: which to use for reading documents Hybrid document AI: OCR for precise text and numbers, vision LLMs for semantic layout and messy handwriting. Do not let fluent models invent totals. Scheduled · November 6, 2026
  3. 3 How to get clean text out of PDFs and scanned documents with AI Detect PDF type, preserve reading order, and chunk on layout before you embed. Columns and tables break if you slice by character count alone. Scheduled · November 8, 2026
  4. 4 How to extract text from PDFs on your own computer with Docling Run open document tools like Docling on CPU or GPU for private, batch extraction. Keep cloud APIs for spikes that need managed scale. Scheduled · November 10, 2026
  5. 5 How to extract tables, invoices, and form fields from documents with AI Extract structured documents with table geometry plus schema validation. Plain text dumps are not invoice systems. Scheduled · November 12, 2026
  6. 6 How to have people check AI-extracted document data before you trust it Design document AI with confidence scoring and human review queues. High softmax alone is not a payment authorization. Scheduled · November 14, 2026
  7. 7 How to remove private data from documents before an AI tool reads them Sanitize document AI inputs at the byte layer before OCR or LLM vision. Overlays and cloud defaults are not enough for PHI, PII, and regulated filings. Scheduled · November 16, 2026
  8. 8 When a phone scanner app is enough to turn paper forms into data Use good lighting and a scanner app when field capture quality matters more than fancy models. Save heavy document AI for pages that still fail after clean scans. Scheduled · November 18, 2026