Lao script recognition
Full support for Lao consonants, vowels, and tone marks.
Vowel positioning
Correctly handles vowels that appear above, below, before, or after consonants.
Tone mark recognition
Reads the four Lao tone marks accurately.
Mixed Lao & English
Bilingual documents with Lao and Latin scripts handled in one pass.
Searchable PDF output
Creates PDFs with invisible text layer for full-text search.
Translate after extraction
Extract Lao text then translate to English or any language.
Why Lao OCR Is Challenging
- Recognizing Lao characters which are visually similar to Thai but have fewer strokes and simpler forms
- Handling vowel diacritics that can appear in multiple positions around a consonant
- Distinguishing similar Lao characters like ກ/ຂ, ຈ/ສ, ຕ/ຖ in small font sizes
- Processing Lao text which has no spaces between words, requiring linguistic segmentation
- Correctly identifying tone marks that are small and easily lost in low-resolution scans
How to Extract Lao Text from a PDF & Images
- Go to fastocr.org
- Upload your Lao 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 Lao OCR Accuracy
- Scan at 300 DPI minimum to preserve small tone marks and vowel diacritics
- Use high-contrast scans to distinguish similar Lao characters that differ by only one stroke
- Verify vowel positions — Lao vowels can surround consonants on up to four sides
- For dense Lao text, increase image contrast to help separate small diacritical marks
Common Use Cases for Lao OCR
- Digitizing Lao legal documents, contracts, and government records
- Extracting text from Lao academic papers and university publications
- Converting scanned Lao Buddhist texts and religious manuscripts
- Processing Lao business invoices and commercial correspondence
- Archiving historical Lao documents and temple inscriptions
Frequently Asked Questions
How accurate is Lao OCR?
FastOCR achieves 93% accuracy on printed Lao text. The script's visual similarity to Thai and small diacritics present challenges on low-quality scans.
Can Lao OCR distinguish Lao from Thai text?
Yes. Although Lao and Thai scripts are related and share some characters, FastOCR correctly identifies and processes each script independently with appropriate language models.
Is Lao OCR free?
Yes. Image OCR is free with no registration. PDF processing requires a free account — see fastocr.org/pricing for plan details.
Does Lao OCR handle documents with both Lao and Thai text?
Yes. FastOCR can process documents containing both Lao and Thai scripts, correctly identifying and extracting text from each language.
Free for images. No registration required.
Related Articles
Thai OCR
OCR for Thai — closely related Southeast Asian script
Khmer OCR
OCR for Khmer — another Southeast Asian script
Image to Text
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PDF to Text
Extract text from scanned and native PDFs
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