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An invoice reader matches law firm bills to case codes and queues the unsure ones for a human

He built an invoice processor for a small law firm: PDFs arrive by email, get read with OCR, matched line by line to case codes, and pushed into the billing system. Anything it is unsure about goes to a manual review queue with a screenshot, and months of edge cases like 8s read as 3s went into its rules.

How it works

  1. An invoice PDF arrives by email
  2. OCR reads it
  3. Each line is matched to a case code
  4. Confident lines go into the billing system
  5. Unsure lines go to a review queue with a screenshot of the problem

Why it’s worth knowing

The review queue is the design: instead of guessing on a legal bill, it shows a human the exact line it cannot read.

Where it’s from

Summarized from a public post on reddit.com. See the original ↗

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