OCR PDF
Extract text from PDF files using OCR (Optical Character Recognition). Works with scanned PDFs and image-based documents. Upload a PDF, select language, and download extracted text.
Drag and drop one PDF file here or click to upload.
OCR PDF Online – Extract Text from Scanned PDFs
The OCR PDF tool uses Optical Character Recognition (OCR) technology to extract text from PDF files, including scanned documents and image-based PDFs. Whether you have a scanned contract, a photo of a document, or a PDF without selectable text, this tool can convert the visual content into editable text directly in your browser.
OCR is useful for digitizing paper documents, extracting data from scanned forms, making archived PDFs searchable, and converting image-based PDFs into text. This tool supports multiple languages and allows you to choose the render quality for better accuracy.
How to Extract Text from PDF with OCR
- Upload your PDF file using the upload button or drag and drop area.
- Select the document language (e.g., English, Spanish, Arabic, etc.).
- Choose render quality (higher quality = better OCR but slower).
- Optionally, enter page ranges to process only specific pages.
- Click “Extract Text with OCR”.
- Wait while the tool processes each page (this may take time).
- Copy the extracted text or download it as a file.
Main Features
- Extract text from scanned PDFs and image-based documents.
- Support for 20+ languages including Arabic, Chinese, Japanese, Korean.
- Adjustable render quality for better OCR accuracy.
- Process all pages or selected page ranges.
- Output as plain text or JSON with page-by-page data.
- Experimental PDF with hidden text layer option.
- Runs locally in your browser for privacy.
- No software installation required.
When to Use OCR PDF
Use this tool when:
- You have a scanned PDF that doesn't allow text selection.
- You need to extract text from a photo or image-based document.
- You want to make an old PDF searchable.
- You need to convert paper documents to digital text.
- You have a PDF with unclear or handwritten text (handwriting support is limited).
Privacy and File Safety
This OCR tool processes your PDF entirely in your browser using JavaScript. Your files are not uploaded to any server, ensuring complete privacy. The OCR engine (Tesseract.js) runs locally and may take time for large documents.
Limitations
OCR accuracy depends on document quality, font, layout, and language selection. Handwritten text, complex layouts, low-resolution scans, and unusual fonts may reduce accuracy. For critical documents, always review the extracted text.
Frequently Asked Questions
Is this OCR PDF tool free?
Yes, this tool is free for basic OCR extraction directly from your browser.
Are my PDF files uploaded to a server?
No. All processing happens locally in your browser using Tesseract.js. Your files never leave your device.
Which languages are supported?
The tool supports 20+ languages including English, Spanish, French, German, Italian, Portuguese, Russian, Arabic, Chinese (Simplified & Traditional), Japanese, Korean, Hindi, Turkish, Dutch, Swedish, Polish, Czech, Greek, Hebrew, and more.
Why is OCR slow for large PDFs?
OCR requires rendering each page as an image and then analyzing it. Higher render quality improves accuracy but increases processing time. For large PDFs, processing may take several minutes.
Can OCR extract handwritten text?
Tesseract has limited handwriting recognition. It works best with printed text. Handwritten text may have lower accuracy or may not be recognized at all.
What is the "PDF with hidden text layer" option?
This experimental option creates a PDF where the original scanned image is preserved, and the extracted text is added as an invisible layer. This makes the PDF searchable while keeping the original appearance. However, this feature may not work perfectly for all PDFs.
How can I improve OCR accuracy?
Use high-quality scans, select the correct language, choose higher render quality, and ensure the document is upright and well-lit. For best results, use clear, high-resolution images.
Can I process multiple PDFs at once?
Currently, this tool processes one PDF file at a time. You can run the tool multiple times for different files.
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