PDF Tools

OCR PDF

Extract text from scanned or image-based PDFs using optical character recognition.

Choose a scanned PDF or image-based PDF to extract text.

What is the OCR PDF (Scanned to Text)?

OCR PDF is a text extraction tool that reads images of text (scanned pages, photographs of documents, or PDF pages rendered as images) and converts them into machine-readable text. The extracted text can be searched, copied, edited, and exported as a plain-text file. OCR is essential for digitizing paper archives, making scanned contracts searchable, or recovering text from low-quality or legacy PDF scans.

How it works

The tool processes your PDF by rendering each page as a high-resolution image, then applying optical character recognition via Tesseract.js to identify letters, numbers, and symbols. For each page, the tool overlays the extracted text and displays it in order. Once extraction completes, you can view the full text in a text area and download it as a .txt file. Quality depends on the scan resolution and clarity—crisp, high-contrast scans yield the best results.

How to use the OCR PDF (Scanned to Text)

  1. Upload your scanned PDF or image-based PDF using the file picker
  2. Click 'Extract Text' to begin optical character recognition processing
  3. Wait as the tool processes each page (speed depends on page count and image resolution)
  4. Review the extracted text in the output text area for accuracy
  5. Copy text directly from the text area or click 'Download as .txt' to save as a file
  6. Use the extracted text for searching, editing, or importing into other documents

Benefits

  • Converts scanned documents into searchable text—no more hunting through image-only PDFs
  • Enables editing and reuse of content from legacy or paper-based documents without manual typing
  • Improves accessibility by making image-based PDFs readable by screen readers and accessible search
  • Saves hours of manual transcription, especially for multi-page scans or archives
  • Works entirely in-browser—no uploads to external servers, no data logging, completely private
  • Handles various scan qualities and supports English text recognition out of the box

Frequently asked questions

What scan quality do I need for accurate OCR?

Crisp, high-contrast scans at 200 DPI or higher work best. Blurry, low-resolution, or heavily skewed pages produce lower accuracy. Always scan at least at 150 DPI; 300 DPI is ideal for documents with small fonts.

Does OCR PDF work with handwritten text?

No. This tool recognizes printed text only. Handwritten documents require specialized handwriting recognition, which is not included. For mixed handwritten/printed documents, results on printed portions may be acceptable.

Can I extract text from colored backgrounds or tables?

Yes, the tool can recognize text on colored backgrounds and within tables. However, table structure (rows/columns) may not be preserved—text will be extracted sequentially. For complex table layouts, you may need to reformat after extraction.

What languages does the OCR tool support?

This tool supports English (eng) recognition. Multi-language support is not currently available in this version.

How long does OCR take?

Processing time depends on page count and image resolution. Expect 2–10 seconds per page on average. The tool shows progress updates as it works. Larger PDFs (10+ pages) may take 2–3 minutes.

Will OCR extract text from images embedded in PDFs?

No. The tool only recognizes text in rendered PDF pages. Standalone images uploaded separately would need conversion to PDF first, but photo-based PDFs (e.g. camera-photographed documents) will work.

Can I download the extracted text?

Yes. Once extraction is complete, click 'Download as .txt' to save the text as a plain-text file you can open in any text editor.

Is my PDF data stored or analyzed anywhere?

No. All processing happens in your browser. Your PDF is never uploaded to any server—it is processed locally and then discarded. Completely private and secure.

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FreeToolz Editorial Team · Last reviewed July 2026

Reviewed for accuracy. Results are estimates for general information and are not professional (medical, financial or legal) advice.