Answer: Amazon Textract

## Explanation Amazon Textract is the correct AWS service for extracting key-value pairs from scanned documents like invoices and forms. **Why Amazon Textract?** - **Purpose**: Amazon Textract is specifically designed for document text extraction, including structured data like key-value pairs from forms, tables, and documents - **Capabilities**: It can automatically detect and extract text, forms (key-value pairs), tables, and other structured data from scanned documents - **Use Case**: Perfect for processing invoices, forms, and other business documents where you need to extract specific fields like names, amounts, dates, etc. **Why not the others?** - **Amazon Rekognition**: Primarily for image and video analysis (facial recognition, object detection, etc.), not document text extraction - **Amazon Comprehend**: For natural language processing and text analysis (sentiment analysis, entity recognition, etc.), but not specifically designed for document form extraction - **Amazon OpenSearch**: A search and analytics engine, not a document processing service Amazon Textract uses machine learning to understand the layout and structure of documents, making it ideal for financial institutions processing large volumes of scanned invoices and forms.

Author: Ritesh Yadav