SchemaLock — extract structured JSON data from any PDF/image or raw text/HTML, converting it into a JSON Schema you supply, not limited to invoice/receipt/contract/resume. Unlike the fixed invoice/receipt/contract/resume endpoints, this accepts any JSON Schema — you define the fields. Takes a PDF/image file OR raw text/HTML you already have (e.g. a scraped page). Schema-conformance, not fact-checking. A rejected schema is a 400 and costs nothing.

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