> ## Documentation Index
> Fetch the complete documentation index at: https://docs.upsonic.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# RapidOCR

> Lightweight OCR based on ONNX Runtime for fast inference

## What is RapidOCR?

Lightweight OCR based on ONNX Runtime for fast inference. Best for speed and lightweight deployment.

## Usage

```python theme={null}
from upsonic.ocr import OCR
from upsonic.ocr.layer_1.engines import RapidOCREngine
# Also available: from upsonic.ocr import RapidOCREngine

# Create engine instance
engine = RapidOCREngine(languages=['en'], confidence_threshold=0.5)

# Create OCR orchestrator
ocr = OCR(layer_1_ocr_engine=engine)

# Extract text from image
text = ocr.get_text('invoice.png')
print(text)

# Process PDF
result = ocr.process_file('document.pdf')
print(f"Extracted {len(result.text)} characters from {result.page_count} pages")
```

## Parameters

| Parameter              | Type       | Default  | Description                        |
| ---------------------- | ---------- | -------- | ---------------------------------- |
| `languages`            | List\[str] | `['en']` | List of language codes             |
| `confidence_threshold` | float      | `0.0`    | Minimum confidence for text blocks |
| `rotation_fix`         | bool       | `False`  | Auto-detect and fix image rotation |
| `enhance_contrast`     | bool       | `False`  | Enhance image contrast             |
| `remove_noise`         | bool       | `False`  | Apply noise reduction              |
| `pdf_dpi`              | int        | `300`    | DPI for PDF rendering              |

## Supported Languages

English, Chinese (simplified and traditional), Japanese, Korean, and several other scripts including Tamil, Telugu, Arabic, Cyrillic, and Devanagari.