> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ledgerbox.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Extract, analyze, and process data from bank statements, invoices, receipts, tax forms, and more with our advanced document processing API

<img className="block dark:hidden" src="https://mintcdn.com/ledgerbox/eIeGKKTivlnjvqwv/images/hero.png?fit=max&auto=format&n=eIeGKKTivlnjvqwv&q=85&s=c26e9c46d1640c0438dae8cd132c80fe" alt="AI-Powered Document Processing and Data Extraction API" width="6541" height="3486" data-path="images/hero.png" />

<img className="hidden dark:block" src="https://mintcdn.com/ledgerbox/eIeGKKTivlnjvqwv/images/hero.png?fit=max&auto=format&n=eIeGKKTivlnjvqwv&q=85&s=c26e9c46d1640c0438dae8cd132c80fe" alt="AI-Powered Document Processing and Data Extraction API" width="6541" height="3486" data-path="images/hero.png" />

## OCR API for Structured Data

Our Document Processing API helps businesses automate data extraction from a wide range of documents including bank statements, invoices, receipts, tax forms, and identity documents. Built with advanced AI and machine learning capabilities, our API delivers accurate, structured data while maintaining enterprise-grade security.

<CardGroup cols={2}>
  <Card title="Start Processing Documents" icon="rocket" href="/quickstart">
    Get your first document processed in under 5 minutes
  </Card>

  <Card title="API Documentation" icon="code" href="/api-reference">
    Explore our comprehensive API reference and examples
  </Card>
</CardGroup>

## Comprehensive Document Support

### Financial Documents

* **Bank Statements**: Extract account details, transactions, and balances with automatic reconciliation
* **Invoices**: Process vendor details, line items, and tax information across multiple currencies
* **Receipts**: Analyze retail, hotel, and business receipts with itemized extraction
* **Bank Checks**: Capture MICR data, amounts, and signature information

### Identity & Personal Documents

* **ID Documents**: Process passports, driver licenses, and national ID cards with MRZ parsing
* **Marriage Certificates**: Extract spouse information, dates, and jurisdiction details
* **Health Insurance Cards**: Capture insurance details, member information, and coverage data

### Tax Documents

* **W2 Forms**: Extract wage data, tax withholdings, and employer information
* **W4 Forms**: Process employee withholding certificates and tax declarations

### Business Documents

* **Contracts**: Analyze legal agreements with party information and key clause extraction
* **Credit Cards**: Process statements with secure handling of sensitive data
* **Pay Stubs**: Extract salary information, deductions, and year-to-date totals

## Key Features and Benefits

<CardGroup cols={2}>
  <Card title="Accurate Data Extraction" icon="bullseye">
    Advanced AI models trained on millions of documents ensure high accuracy
  </Card>

  <Card title="Multi-Language Support" icon="globe">
    Process documents in multiple languages and regions
  </Card>

  <Card title="Enterprise Security" icon="shield-halved">
    SOC 2 compliant with end-to-end encryption and secure data handling
  </Card>

  <Card title="Scalable Processing" icon="server">
    Handle high volume with batch processing of up to 10 documents per request
  </Card>
</CardGroup>

## Advanced Processing Capabilities

### Intelligent Data Extraction

* Automatic field detection and extraction
* Advanced OCR with layout analysis
* Structured data output in JSON format
* High confidence scoring for extracted data

### Validation and Verification

* Automatic tax calculations verification
* MICR line validation for checks
* Card number validation using Luhn algorithm
* Cross-field validation for consistency

### Security Features

* PII detection and handling
* Secure data transmission
* Optional data masking
* Access control and audit logging

## Integration Made Simple

```python theme={null}
import requests

# Process a bank statement
response = requests.post(
    'https://api.example.com/api/jobs/upload',
    headers={'x-api-key': 'your_api_key'},
    files={'files': open('statement.pdf', 'rb')},
    data={'model': 'BANK_STATEMENT'}
)

# Get structured data
result = response.json()
```

## Industry Solutions

<CardGroup cols={2}>
  <Card title="Financial Services" icon="building-columns">
    Automate loan processing, account opening, and financial analysis
  </Card>

  <Card title="Accounting & Tax" icon="calculator">
    Streamline bookkeeping, tax preparation, and audit processes
  </Card>

  <Card title="Healthcare" icon="hospital">
    Process insurance cards, medical bills, and healthcare documents
  </Card>

  <Card title="Legal Services" icon="scale-balanced">
    Analyze contracts, legal documents, and compliance paperwork
  </Card>
</CardGroup>

## Getting Started is Easy

1. [Sign up](/signup) for an API key
2. Follow our [quickstart guide](/quickstart)
3. Start processing documents in minutes

<Card title="Try it Free" icon="play" href="/signup">
  Process your first 100 documents free. No credit card required.
</Card>

## Resources and Support

* [API Reference](/api-reference): Detailed endpoint documentation
* [Code Examples](/examples): Sample implementations in multiple languages
* [Best Practices](/guides/best-practices): Optimization tips and guidelines
* [Support](/support): 24/7 technical support and documentation

Start transforming your document processing today with our powerful, secure, and easy-to-use API.