A law firm wants to automatically detect whether each contract page is signed and obtain a confidence score per page. Which Amazon Textract API call returns signature detection along with per-page confidence scores in a single synchronous operation?
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Correct answer: Call AnalyzeDocument and include SIGNATURES in the FeatureTypes to receive detected signatures and confidence scores per page..
Why this is the answer
The AnalyzeDocument API call in Amazon Textract is designed for synchronous document analysis. By specifying SIGNATURES in the FeatureTypes parameter, Textract will detect signatures on each page and return corresponding confidence scores in a single, immediate response. This directly addresses the requirement for synchronous operation and per-page signature detection with confidence scores. The Prediction API is not a standard Amazon Textract API call. StartDocumentAnalysis initiates an asynchronous job, meaning results are not immediately available, which contradicts the "single synchronous operation" requirement. GetDocumentAnalysis is used to retrieve the results of an asynchronous job started by StartDocumentAnalysis, so it also doesn't fit the synchronous requirement.
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