OCRmyPDF vs Chandra
OCRmyPDF is cheaper per page; OCRmyPDF is faster; only Chandra supports tables, math, handwriting, forms, bounding boxes.
OCRmyPDFocrmypdf/ocrmypdf | Chandradatalab/chandra | |
|---|---|---|
| Type | Open source | Open source |
| Price | 1 credit / page | 2 credits / page |
| Per 1,000 pages | $1.00 | $2.00 |
| Typical speed | 1.0 s / page | 2.0 s / page |
| Best for | Searchable PDFs from scans | Complex layouts and handwriting |
| Inputs | PDF, images | PDF, images |
| Languages | 100+ languages (via Tesseract) | 40+ languages |
| Max pages per request | 1,000 | 500 |
| Tables | No | ✓ Yes |
| Handwriting | No | ✓ Yes |
| Math | No | ✓ Yes |
| Bounding boxes | No | ✓ Yes |
| Confidence | No | No |
| Forms | No | ✓ Yes |
| Multilingual | ✓ Yes | ✓ Yes |
| On OCRRouter | Coming soon | Coming soon |
Prices are what you pay on OCRRouter. Speed is the provider's typical figure, not a benchmark we ran.
What each one is
OCRmyPDF
Command-line tool that adds a searchable text layer to scanned PDFs, using Tesseract.
OCRmyPDF detailsChandra
Datalab's OCR model that keeps layout and handles forms, tables and handwriting.
Chandra detailsUse one, fall back to the other
Request body
{
"model": "ocrmypdf/ocrmypdf",
"fallbacks": ["datalab/chandra"],
"file_url": "https://example.com/document.pdf"
}