How accurate is the OCR on low-quality scans?

The AI model handles noise, skew, and low resolution well, though very degraded scans may need preprocessing. All recognition runs locally on your self-hosted instance, so you can re-run with adjusted settings without usage limits.

Does it support non-English documents?

Yes, the OCR engine supports dozens of languages and can auto-detect the language in each page. Processing happens entirely on your server, making it safe for documents in any language without external API calls.

Can I process confidential legal or medical PDFs?

Absolutely. Because SnapOtter is self-hosted, your PDFs never leave your network. No data is sent to external servers, making it suitable for HIPAA, GDPR, or any privacy-sensitive workflow.

Convert AI-Powered

PDF OCR

Extract searchable text from scanned PDF documents using AI-powered optical character recognition. Handles multi-page documents, mixed layouts, and handwritten content with high accuracy. All OCR processing runs locally on your server, so sensitive documents never leave your network.

Deploy with Docker View Source

Features

AI-powered text recognition with support for printed and handwritten content
Multi-page PDF processing with preserved page structure and reading order
Automatic language detection across dozens of supported languages
Outputs searchable PDF with an invisible text layer overlaid on the original
Handles skewed scans, low-resolution images, and mixed text-photo layouts

What you can do

Digitizing archived paper contracts for full-text search in a document management system
Extracting invoice line items from scanned supplier PDFs for bookkeeping import
Making legacy research papers searchable without uploading them to third-party services
Converting scanned government forms into selectable text for accessibility compliance

AI that runs on your hardware. No cloud APIs, no usage limits.

Unlike cloud AI services, SnapOtter's PDF OCR runs the ML model directly on your server. Your files are processed locally with no data sent to external APIs. No per-file fees, no rate limits, no privacy concerns. Deploy once with Docker and use it as much as you need.

Frequently asked questions

How accurate is the OCR on low-quality scans?: The AI model handles noise, skew, and low resolution well, though very degraded scans may need preprocessing. All recognition runs locally on your self-hosted instance, so you can re-run with adjusted settings without usage limits.
Does it support non-English documents?: Yes, the OCR engine supports dozens of languages and can auto-detect the language in each page. Processing happens entirely on your server, making it safe for documents in any language without external API calls.
Can I process confidential legal or medical PDFs?: Absolutely. Because SnapOtter is self-hosted, your PDFs never leave your network. No data is sent to external servers, making it suitable for HIPAA, GDPR, or any privacy-sensitive workflow.

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