easyMultiple Choice
AIF-C01 Practice Question: Which AWS service is BEST suited for extracting…
Which AWS service is BEST suited for extracting text from scanned PDF documents, such as invoices and receipts?
⚠ Common exam trap
The trap is that candidates often confuse Amazon Rekognition's text-in-image capability with Amazon Textract's document-specific extraction. However, Rekognition lacks the ability to extract text from structured documents like invoices and receipts, as it is designed for image analysis rather than document processing.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Amazon Textract
Amazon Textract is specifically designed to extract text, handwriting, and data from scanned documents like invoices and receipts. It uses machine learning to recognize and extract printed text, forms, and tables from document images, going beyond simple OCR by understanding the structure of the document.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Amazon Comprehend
Why it's wrong here
Amazon Comprehend analyses existing text for entities, sentiment and key phrases; it cannot perform optical character recognition on scanned images. It is tempting because invoice extraction ultimately yields structured entities, but Comprehend requires text already extracted — Amazon Textract supplies that OCR step first.
- ✓
Amazon Textract
Why this is correct
Amazon Textract uses optical character recognition with layout analysis to extract text, forms and tables from scanned documents such as invoices and receipts. This directly satisfies the requirement for extracting text from scanned PDFs, unlike generic storage or compute services.
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Amazon Rekognition
Why it's wrong here
Amazon Rekognition performs image and video analysis — object, face and label detection — and does not extract text from documents. It is tempting because scanned PDFs are images, but Rekognition's label detection returns categories, not transcribed invoice fields; Amazon Textract is purpose-built for document text and form extraction.
- ✗
Amazon Transcribe
Why it's wrong here
Amazon Transcribe converts speech audio into text and accepts no PDF input, so it cannot read scanned invoices. The temptation is that both Transcribe and Textract perform extraction, but the axis of difference is input modality: Transcribe handles audio streams, whereas Textract handles document images and PDFs.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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