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A data analytics team is preparing documents for an Azure AI Search solution. They have a large collection of scanned annual reports in PDF format. Before indexing, they need to convert these image-based PDFs into searchable text. Which Azure AI service or technology is primarily responsible for performing this conversion?
- AAzure AI Language
- BAzure AI Vision's Spatial Analysis
- CAzure AI Speech
- DAzure AI Document Intelligence
Show answer & explanationAnswer & explanation
Correct answer: D. Azure AI Document Intelligence
While OCR is a component, Azure AI Document Intelligence (which includes robust OCR capabilities) is specifically designed to process various document types, including image-based PDFs, to extract text, structure, and key-value pairs, making them searchable.
Why the other options are wrong
- A. Azure AI Language focuses on understanding text (e.g., sentiment, entities), not converting images to text.
- B. Azure AI Vision's Spatial Analysis focuses on detecting objects and understanding spatial relationships in live video streams, not OCR for documents.
- C. Azure AI Speech converts spoken audio into text, which is irrelevant for scanned PDF documents.
Document OCR with Document Intelligence
Azure AI Document Intelligence provides advanced OCR capabilities to extract text from scanned documents, including image-based PDFs, making their content accessible for further processing.
- Handles both printed and handwritten text.
- Preserves document layout and reading order.
- Integrated into comprehensive document processing pipelines.
Memory trick: To 'read' scanned documents, you need a 'Document Intelligence' brain that can 'see' the text.