π PDF OCR
π Recognize text in scans
Free online PDF OCR powered by Tesseract. Recognize text in scanned PDFs. All local, no uploads, secure.
How to Use
- Enter the OCR tool and add your scanned PDF
- Select the recognition language (e.g. English, Chinese)
- Click Start and wait for recognition to complete
- Copy or download the recognized text content
FAQ
Why can't I copy text from a scanned PDF?
Scanned pages are essentially images with no text layer. OCR renders the page first, then recognizes text in the image. After that, the text becomes copyable, editable, and searchable.
How accurate is OCR for different languages?
Recognition is highly accurate for clear printed text. Multiple languages are supported. Always select the correct language before recognition. Handwritten or low-clarity images will have lower accuracy.
Why is recognition slow?
OCR renders and analyzes each page image. Many pages or high-resolution images take longer. Please be patient and do not close the page during processing.
Can I OCR multiple PDFs at once?
Use the Batch OCR tool to add multiple PDF files at once. Each file outputs a TXT document, all zipped together for download.
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