Detailed Definition
OCR (Optical Character Recognition) analyzes scanned images inside a PDF page and converts shape pixels into indexable text characters, creating searchable documents.
Glossary HubPDF
What is OCR PDF?
Optical Character Recognition technology to convert scanned PDFs into editable text.
1 min read•Updated 2026-06-08
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Practical Example
Code/Output blockScanned JPG invoice page -> OCR conversion -> Searchable PDF text fields.
Why It Matters
Scanned documents are just images. OCR enables users to search for keywords, highlight sentences, copy text blocks, and translate document content.
Common Use Cases
1
Converting physical paper book scans into searchable PDF files
2
Allowing indexing systems to crawl scanned receipts for record bookkeeping
3
Extracting table data from older document archives into edit sheets
Frequently Asked Questions
Accuracy depends on scanned resolution and print clarity. Standard scans achieve 95% to 99% accuracy.
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