Korean OCR
이미지와 스캔 문서에서 한국어 텍스트를 정확하게 추출하세요
Free · No registration for images · AI-powered
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PNG, JPG, PDF
Hangul recognition
All Korean syllable blocks including complex jamo combinations.
Mixed Korean & English
Documents with both Korean and English handled in a single pass.
Signs & labels
Photograph Korean signs, product labels, menus, or packaging.
Documents & PDFs
Scanned Korean documents, contracts, and official papers.
Hanja support
Recognizes Chinese characters mixed with Hangul in formal documents.
Translate after extraction
Extract Korean text then translate to English or any language.
Why Korean OCR Is Challenging
- Recognizing Hangul syllable blocks which combine 2-3 jamo (consonants and vowels) into a single square character
- Handling mixed Korean text with occasional Hanja (Chinese characters) in formal and legal documents
- Distinguishing visually similar Hangul characters like ㅎ/ㅂ and 가/카 in small font sizes
- Processing Korean text with English loanwords written in both Hangul and Latin script
- Correctly interpreting spacing in Korean which uses spaces between words unlike Japanese or Chinese
How to Extract Korean Text from a PDF & Images
- Go to fastocr.org
- Upload your Korean image or PDF. Language is detected automatically.
- Wait for processing — images take seconds, PDFs show a progress bar.
- Download results: searchable PDF, raw text file, or copy text directly.
Tips for Better Korean OCR Accuracy
- Use 300 DPI scans to preserve the fine details within Hangul syllable blocks
- For documents with Hanja, verify Chinese character recognition alongside Hangul text
- Check for correct spacing — Korean uses spaces between words and OCR may merge or split them incorrectly
- Review similar-looking jamo pairs like ㄱ/ㅋ, ㄷ/ㅌ, ㅂ/ㅍ which are common OCR confusion points
- Straighten skewed scans to avoid misalignment of the square Hangul character grid
Common Use Cases for Korean OCR
- Digitizing Korean legal documents, contracts, and court records
- Extracting text from Korean corporate filings and financial reports
- Converting scanned Korean academic papers and research publications
- Processing Korean government forms, ID documents, and certificates
- Archiving Korean historical texts that mix Hangul with Hanja characters
Frequently Asked Questions
How accurate is Korean OCR on Hangul text?
FastOCR achieves 97% accuracy on printed Korean Hangul text. Accuracy may be lower on stylized fonts or very small text sizes.
Does Korean OCR support Hanja characters?
Yes. FastOCR recognizes Hanja (Chinese characters) mixed with Hangul, which is common in Korean legal and academic documents.
Can I extract Korean text from a photo?
Yes. Upload the photo directly. For best results, ensure good lighting and that the Korean text is in focus and not skewed.
Is Korean OCR free?
Image OCR is free with no registration. PDF processing requires a free account and includes 3 free PDFs per month.
Free for images. No registration required.