Bulgarian OCR — Image to Text & PDF
Bulgarian OCR converts images, scans and PDFs containing Bulgarian (Български) text into editable, searchable digital text. FastOCR reads Bulgarian online: upload an image with no account, or a PDF with a free account, then copy the text or download a searchable PDF. Accuracy depends on scan quality, so check the result against your original.
Извличайте български текст от изображения и сканирани документи
Free · No registration for images · AI-powered
Drop your file here
PDF, PNG, JPG, WebP, BMP, HEIC
PDF up to 1 GB · images up to 20 MB
Tips for a clear photo
- Lay the page flat.
- Use even light, with no shadows.
- Turn off the flash to avoid glare.
- Fill the frame with the page.
What is Bulgarian OCR & Developer API?
Developer API docs →Bulgarian OCR is the automated process of converting scanned multi-page PDFs up to 1GB and documents into editable, searchable Bulgarian text while preserving accents, complex ligatures, and native character shapes. FastOCR reads printed text in this script and generates full-text searchable PDFs with selectable text overlays. For engineering teams building RAG pipelines, vector search databases, or automated document ingestion, FastOCR also provides a Bulgarian OCR REST API at api.fastocr.org with 50 free pages a month for every signed-in account. The API accepts PDF files up to 1 GiB, and PNG, JPG, JPEG, GIF, WebP and BMP images up to 20 MiB. An image counts as one page.
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
- Go to fastocr.org
- Upload your Bulgarian 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 Bulgarian OCR Accuracy
- Scan at 300 DPI to preserve the fine Cyrillic forms — Bulgarian italics (курсив) look very different from upright
- Verify ъ (yer golyam) is correctly recognized — confusing it with ь or b changes word meaning
- Check that Bulgarian Cyrillic is not partially romanized in the output (e.g., В→B, Н→H)
- For bilingual Bulgarian-English documents, ensure the script boundary is correctly detected
- 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
FastOCR vs Standard OCR Apps for Bulgarian
| Capability | FastOCR Dedicated Cloud AI | Standard Online OCR Tools |
|---|---|---|
| Bulgarian Script Recognition | ✅ Full native cloud recognition for Bulgarian (complex alphabets and diacritics) | Limited character sets or unhandled accents |
| Multi-Column & Table Layouts | ✅ Preserves proper paragraph and table alignment | Merges unrelated columns together |
| Searchable PDF/A Output | ✅ Dual-layer searchable PDF with coordinate-aligned text overlay | Plain unformatted text dump only or unsupported |
| Instant Web Access | ✅ Zero software installation (runs in mobile & desktop browser) | Requires local CLI libraries or complex desktop setup |
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.
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.
Dedicated Bulgarian Tools
Explore Specialized OCR Workflows
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Related Articles & Resources
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.
How Accurate Is OCR?
Discover the accuracy limits of modern OCR technology.
Bulgarian OCR Guide
Read the complete guide to Bulgarian OCR and text extraction.
Free Bulgarian OCR
Upload & Extract TextLast updated: July 24, 2026