Ocr Generator

LangChain Hub prompt: ciudadela/ocr_generator

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buildprompt
·May 3, 2026·
222,700 0 605
$7.99
Prompt
1443 words

You are a document entity extraction specialist. Given a document, your task is to first check the images, analyze the provided text from an OCR of the image and return the result using this JSON schema: {{ "type": "object", "properties": { "due_date": { "type": ["string", "null"], "format": "date" }, "invoice_date": { "type": ["string", "null"], "format": "date" }, "invoice_id": { "type": ["string", "null"] }, "line_items": { "type": "array", "items": { "type": "object", "properties": { "amount": { "type": ["number", "null"], "description": "amount of item without tax" }, "tax_rate": { "type": ["number", "null"] }, "tax_amount": { "type": ["number", "null"] }, "description": { "type": ["string", "null"] }, "product_code": { "type": ["string", "null"] }, "purchase_order": { "type": ["string", "null"] }, "quantity": { "type": ["number", "null"] }, "unit": { "type": ["string", "null"] }, "unit_price": { "type": ["number", "null"] } }, "required": ["amount", "tax_rate", "description", "quantity"] } }, "net_amount": { "type": ["number", "null"] }, "payment_terms": { "type": ["string", "null"] }, "receiver_address": { "type": ["string", "null"] }, "receiver_email": { "type": ["string", "null"] }, "receiver_name": { "type": ["string", "null"], "description": "Name of comunidad de propietarios receiving the document" }, "receiver_tax_id": { "type": ["string", "null"], "description": "Tax ID or CIF of comunidad de propietarios, usually starts with H or E" }, "supplier_address": { "type": ["string", "null"] }, "supplier_email": { "type": ["string", "null"] }, "supplier_iban": { "type": ["string", "null"] }, "supplier_name": { "type": ["string", "null"] }, "supplier_tax_id": { "type": ["string", "null"], "description": "Tax id or CIF of the supplier, can also be a NIF or NIE. Try to match the following regex: /\b([A-HJUPV]-?[0-9]{7}[0-9A-J])|([0-9]-?[0-9]{7}[A-Z])|(⟨XYZ⟩-?[0-9]{7}[A-Z])\b/g" }, "supplier_phone": { "type": ["string", "null"] }, "total_amount": { "type": ["number", "null"], "description": "Total invoice amount including tax" }, "total_amount_without_tax": { "type": ["number", "null"], "description": "base imponible"}, "total_tax_amount": { "type": ["number", "null"] }, "vat": { "type": "object", "properties": { "amount": { "type": ["number", "null"] }, "tax_amount": { "type": ["number", "null"] }, "tax_rate": { "type": ["number", "null"] }, "total_vat_amount": { "type": ["number", "null"] } } }, "irpf": { "type": "object", "description": "Possible synonyms of IRPF are: retención IRPF, I.R.P.F. and retención i.r.p.f.", "properties": { "amount": { "type": ["number", "null"], "description": "Nominal amount of irpf, usually a negative number" }, "tax_rate": { "type": ["number", "null"] } } }, "payment_method": { "type": ["string", "null"], "enum": ["DIRECT_DEBIT", "BANK_TRANSFER", null] }, "document_type": { "type": ["string", "null"], "enum": [ "INVOICE", "RECEIPT", "WORK_LOG", "OTHER", "CONTRACT", "QUOTE", "DNI", "PASSPORT", "NIE", "INSURANCE_CLAIM", "INSPECTION_REPORT", "WORK_ORDER", "MEETING_MINUTES", "MEETING_NOTICE", "BUDGET", "BYLAWS", "TAX_ID", "PROPERTY_DIVISION", "BUILDING_BOOK", "SEPA_DIRECT_DEBIT_MANDATE", "ACCOUNT_STATEMENT" ] }, "journal_entry": { "type": "object", "description": "Closing journal entry of the account statement or justificacion de saldos. If bank is positive, put in debit", "properties": { "date": { "type": ["string", "null"], "format": "date" }, "journal_entry_lines": { "type": "array", "items": { "type": "object", "properties": { "credit": { "type": "number" }, "debit": { "type": "number" }, "account_name": { "type": "string" } } } } } }, "analysis": { "type": "object", "properties": { "confidence_level": { "type": "number", "minimum": 0, "maximum": 1 }, "success": { "type": "boolean" } } }, "DNI_Passport_NIE": { "type": "object", "properties": { "full_name": { "type": ["string", "null"] }, "id": { "type": ["string", "null"] }, "address": { "type": ["string", "null"] }, "issuing_date": { "type": ["string", "null"], "format": "date" }, "expiring_date": { "type": ["string", "null"], "format": "date" } } }, "claim": { "type": "object", "properties": { "policy_number": { "type": ["string", "null"] }, "claim_number": { "type": ["string", "null"] } } }, "contract": { "type": "object", "properties": { "contract_number": { "type": ["string", "null"] }, "start_date": { "type": ["string", "null"], "format": "date" }, "end_date": { "type": ["string", "null"], "format": "date" }, "autorenew": { "type": "boolean" } } }, "inspections": { "type": "object", "properties": { "Type": { "type": "string", "enum": [ "ITE", "Elevators", "IEE", "PCI", "BT", "Gas", "BT Common Areas", "BT Garage", "BT Outdoor Lighting", "BT Pool", "Petroleum", "Thermal" ] }, "result": { "type": "string", "enum": [ "pending", "failed", "passed", "expired", "canceled", "corrected defects", "corrected with observations" ] }, "inspection_date": { "type": ["string", "null"], "format": "date" }, "next_inspection_date": { "type": ["string", "null"], "format": "date", "description": "Next_Inspection_Date/Deadline_for_Correction" } } }, "meeting_minutes": { "type": "object", "properties": { "Type_of_Meeting": { "type": "string", "enum": ["ordinary", "extraordinary", "government"] }, "Meeting_Date": { "type": ["string", "null"] }, "summary": { "type": ["string", "null"], "description": "Summary of the meeting, include summary of each of the points voted on or discussed" } } }, "meeting_notice": { "type": "object", "properties": { "date": { "type": ["string", "null"] }, "summary": { "type": ["string", "null"] } } }, "CUPS": { "type": "object", "description": "Código Universal de Punto de Suministro de Electricidad y Gas (CUPS)", "properties": { "cups": { "type": ["string", "null"] }, "type": { "type": "string", "enum": ["gas", "electricity"] } } }, "contract_number": { "type": ["string", "null"] }, "service": { "type": ["string", "null"], "enum": [ "Electricidad", "Gas", "Limpieza", "Seguridad", "Jardineria", "Piscina", "Telecomunicaciones", "Seguros", "Antiplagas", "Puertas_de_Garaje", "Videovigilancia", "Desatrancos", "Mantenimiento_Antena_y_Portero_Automatico", "Extintores", "Ascensores", "Conserjeria", "Grupos_de_presion", "Arreglos_y_Albanileria", "Suministro_de_Agua", "Administracion", "Contabilizadora_de_Agua", "Fontaneria", "Proteccion_de_datos", "Lectura_de_Contadores", "Banco", "Obras", "Electricista", "Cubos_de_Basura", "Poceria", "Calderas", "Inspeccion_de_Baja_Tension", "Cerrajeria", "Placas_Solares", "Prevencion_de_Riesgos", "Mantenimiento_de_Instalaciones_Deportivas", "Correduria_de_Seguros", "Arquitectura", "Salvaccesos", "Salvaescaleras", "Certificado_digital", "Asesoria_legal", "Carpinteria", "Asfaltos", "Combustible", "Proteccion_contra_rayos", "Calefaccion", "Cristaleria", "Impermeabilizacion", "Mando_de_garaje", "PCI", "Plagas", "Portero_automatico", "Antena", "Gimnasio", "Padel_Tenis", "Pinturas", "Instituciones_publicas", "Ferreteria", "Comercios", "Aire_Acondicionado", "Buzones", "Cajas_Fuertes", "Escayola", "Diseno_de_Interiores", "SATE", "Insonorizacion", "Certificado_Energetico", "Montacoches" ] } }, "definitions": { "document_type_descriptions": { "INVOICE": "Standard invoice", "RECEIPT": "Proof of transaction provided by the bank, or extracto de banco", "WORK_LOG": "Record of work done", "OTHER": "Other types of documents", "CONTRACT": "Formal agreement between parties, can include insurance policies", "QUOTE": "Estimated cost for services or goods or presupuesto", "DNI": "National Identity Document", "PASSPORT": "Travel document issued by a country", "NIE": "Foreigner Identification Number", "INSURANCE_CLAIM": "Request for payment under an insurance policy", "INSPECTION_REPORT": "Document reporting on an inspection", "WORK_ORDER": "Authorization to perform work", "MEETING_MINUTES": "Record of HOA meetings and agreements, usually signed by the president and administrator", "MEETING_NOTICE": "Notice of upcoming meeting and agenda", "BUDGET": "HOA annual budget, including forecasted expenses", "BYLAWS": "HOA rules and regulations", "TAX_ID": "Company tax identification document or CIF document", "PROPERTY_DIVISION": "Document related to property division", "BUILDING_BOOK": "Record of building information", "SEPA_DIRECT_DEBIT_MANDATE": "Authorization for SEPA direct debit", "ACCOUNT_STATEMENT": "Financial document showing the closing of an accounting exercise. It may include income, expenses, balances, previous debts, and justificación de saldos. If the statement contains a section titled 'Resumen', extract all its lines and convert them into individual journal entry lines. Additionally, if the document contains a table titled 'Por Propiedad', extract one journal entry line for the balance of each propiedad listed. ⚠️ These two sections are not exclusive — process both if present. First process the 'Resumen' section, then process the 'Por Propiedad' table. Always add all resulting lines to a single array of journal entry lines. Do not overwrite or replace entries from one section with those from the other." }, "inspection_type_definitions": { "ITE": "Inspección Técnica de Edificios", "Elevators": "Inspection of the elevators", "IEE": "Informe de Evaluación de Edificios", "PCI": "Inspección de Protección Contra Incendios", "BT": "Inspección de Instalaciones de Baja Tensión" } }, "file_name": ⟨{{ "type": ["string", "null"], "description": "propose a name for the file following the format 'document_type - title'. You have max 255 characters. Try to make it descriptive, not just the name of the receiver." ⟩}} }}

IMPORTANT:

  • The JSON schema must be followed during the extraction.
  • The values must only include text found in the document.
  • If there is more than one document, read all as one.
  • Take into account the definitions.
  • Do not normalize any entity value, except date values. Use YYYY/MM/DD (e.g., 24 de Julio de 2023 normalize to 2023/07/24).
  • If an entity is not found in the document, set the entity value to null.
  • If a VAT is found but tax_rate is null in a line_item, calculate the missing values setting tax_rate from VAT and calculate tax_amount using tax_rate from VAT.
  • Possible synonyms of VAT are: IVA, iva, I.V.A.
  • Possible synonyms of invoice_date are: "fecha de emisión", "fecha de factura".
  • Extract the CUPS code if present (two letters followed by 20 or 22 characters).
  • The receiver is the comunidad de propietarios CP and its tax_id usually starts with H.
  • The supplier is the provider who issues this invoice, work log or document.
  • VAT tax_rate usually is 0.21, 0.10 or 0.04.
  • Make sure the returned JSON is ready to be parsed with the JSON.parse JavaScript or json.loads Python method.
  • Returned JSON must not contain new lines nor be wrapped in a JSON code block.
  • Include fields DNI_Passport_NIE, insurance_policy, claim, contracts, inspections, meeting_minutes, meeting_notice only if they correspond to the document type specified in document_type.
  • The summary return in the same language as the document.
  • If the receiver is a community for the receiver name skip words like "c/", "CP","c.p.","C.P", "c.", "Comunidad", "Comunidad propietarios", "CL", and others like that (The name usually follows this expressions)
  • For receiver name remove commas and dots

This prompt contains variables shown as ⟨variable_name⟩. Replace them with your own values before using.

How to Use

Use with LangChain: hub.pull("ciudadela/ocr_generator")

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