PDF OCR

Extract text from scanned PDFs using optical character recognition. Make your documents searchable and copyable.

Drop your files here, or browse

Supports PDF

You can select multiple files at once (up to 20)

100% browser-based. Your files never leave your device.

Scanned documents and image-based PDFs contain text that cannot be searched, copied, or edited. OCR (Optical Character Recognition) technology solves this by recognizing text within images and converting it to selectable, searchable text.

DaConvert's PDF OCR tool uses Tesseract.js, the JavaScript port of the world's most accurate open-source OCR engine. It supports recognition of printed text in multiple languages and handles various document types including scanned contracts, invoices, receipts, academic papers, and archived documents.

The entire OCR process runs in your browser using WebAssembly, which means your scanned documents are never uploaded to any server. This is crucial for sensitive documents like medical records, legal contracts, and financial statements. Process multiple PDFs in batch and extract text from all of them at once.

Frequently Asked Questions

How accurate is the OCR recognition?+
Tesseract.js achieves over 95% accuracy on clean, well-scanned documents with standard fonts. Accuracy may be lower for handwritten text, unusual fonts, or poor-quality scans.
Which languages are supported?+
The OCR engine primarily supports English text recognition. Additional language support may require loading specific language data packages.
Can OCR recognize handwritten text?+
Tesseract.js is optimized for printed text. Handwritten text recognition has limited accuracy and results may vary significantly depending on handwriting legibility.
How long does OCR processing take?+
Processing time depends on the number of pages and document complexity. A single-page document typically takes 5-15 seconds. Multi-page documents are processed sequentially, with each page taking a similar amount of time.