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FastOCR

Bulgarian OCR — Image to Text & PDF

Извличайте български текст от изображения и сканирани документи

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What is Bulgarian OCR?

Bulgarian OCR is the process of using optical character recognition to extract editable Bulgarian text from scanned images, photos, or PDF documents. It preserves accents, diacritics, and native character shapes so the output can be searched, copied, and translated. FastOCR performs Bulgarian OCR with AI-powered text recognition and requires no registration for image uploads.

Bulgarian Cyrillic support

Full recognition of the 30 Bulgarian Cyrillic letters including ъ, я, ю, щ, ь.

Cyrillic vs Latin distinction

Correctly separates Bulgarian Cyrillic from Latin characters in mixed documents.

Orthographic specificity

Handles Bulgarian-specific letters (ъ, я, ю, щ) absent from Russian Cyrillic norms.

Document processing

Works with Bulgarian legal, academic, and business documents.

Searchable PDF output

Creates PDFs with invisible text layer for full-text search.

Translate after extraction

Extract Bulgarian text then translate to English or any language.

Why Bulgarian OCR Is Challenging

  • Recognizing the Bulgarian letter ъ (yer golyam) — a unique Cyrillic vowel that looks like ь with a different placement
  • Distinguishing Bulgarian Cyrillic from similar-looking Latin capitals: В/B, Н/H, Р/P, С/C, У/Y
  • Handling the я (ya) and ю (yu) iotated vowels which have distinctive shapes unique to Cyrillic
  • Processing documents mixing Bulgarian with Russian, English, or Turkish loanwords
  • Correctly interpreting Bulgarian typographic conventions where italics and upright forms of Cyrillic differ significantly

How to Extract Bulgarian Text from a PDF & Images

  1. Go to fastocr.org
  2. Upload your Bulgarian image or PDF. Language is detected automatically.
  3. Wait for processing — images take seconds, PDFs show a progress bar.
  4. Download results: searchable PDF, raw text file, or copy text directly.

Tips for Better Bulgarian OCR Accuracy

  1. Scan at 300 DPI to preserve the fine Cyrillic forms — Bulgarian italics (курсив) look very different from upright
  2. Verify ъ (yer golyam) is correctly recognized — confusing it with ь or b changes word meaning
  3. Check that Bulgarian Cyrillic is not partially romanized in the output (e.g., В→B, Н→H)
  4. For bilingual Bulgarian-English documents, ensure the script boundary is correctly detected
  5. Use high-contrast scans to distinguish similar Cyrillic letters like и/й/ы and ш/щ

Common Use Cases for Bulgarian OCR

  • Digitizing Bulgarian legal documents, contracts, and court rulings
  • Extracting text from Bulgarian government forms and official certificates
  • Converting scanned Bulgarian academic papers and university publications
  • Processing Bulgarian business invoices and EU trade documentation
  • Archiving historical Bulgarian documents and Ottoman-era records

Frequently Asked Questions

Does Bulgarian OCR handle the letter ъ correctly?

Yes. FastOCR recognizes ъ (yer golyam), the characteristic Bulgarian vowel. While ъ in Russian is a "hard sign" (silent), in Bulgarian it is a distinct vowel sound — our model handles this correctly at 97% accuracy.

How does Bulgarian OCR differ from Russian OCR?

Bulgarian uses a 30-letter Cyrillic alphabet without the Russian letters ы, э, ё which are absent from Bulgarian. Bulgarian also uses ъ as a vowel (not a hard sign). FastOCR auto-detects Bulgarian vs Russian Cyrillic.

Can it handle Bulgarian documents mixed with English text?

Yes. FastOCR handles bilingual Bulgarian-English documents in a single pass, correctly identifying Cyrillic and Latin script boundaries.

Is Bulgarian OCR free?

Image OCR is free with no registration. PDF processing requires a free account — see fastocr.org/pricing for plan details.

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Related Articles

Russian OCR

OCR for Russian — shares Cyrillic script family with Bulgarian

Greek OCR

OCR for Greek — shares Balkan region and Cyrillic-derived typography

Ukrainian OCR

OCR for Ukrainian — another Slavic Cyrillic language

Image to Text

Convert any image to editable text instantly

PDF to Text

Extract text from scanned and native PDFs

What is OCR?

Learn how optical character recognition technology works.

Free Bulgarian OCR

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Last updated: July 24, 2026