PDF OCR: Free Online Text Recognition
Extract text from scanned PDFs and images using advanced OCR technology. Make non-searchable documents fully searchable and copyable. No uploads, no limits — 100% private.
Text Recognition
Advanced OCR engine extracts text from scanned documents and image-based PDFs with high accuracy.
Multi-Language
Supports dozens of languages including English, Spanish, French, German, Chinese, Japanese, Arabic, and more.
100% Private
Your files never leave your device. All OCR processing happens in your browser — no server uploads, no cloud processing.
PDF OCR Text Recognition
Extract text from scanned PDFs and make them searchable
Drag & drop scanned PDFs here
or click to select files
Supports scanned documents and image-based PDFs
How OCR Works
- • Analyzes scanned pages and images in your PDF
- • Recognizes text using advanced AI algorithms
- • Creates an invisible text layer for searching
- • Extracts text while keeping the original image intact
Searchable Text
Make scanned PDFs searchable
Multi-Language
Support for 10+ languages
Fast & Accurate
AI-powered recognition
Best Free Online OCR for PDFs
Need to extract text from a scanned PDF? Our free PDF OCR tool uses advanced optical character recognition to convert image-based and scanned PDFs into fully searchable, selectable, and copyable documents. Unlike iLovePDF or SmallPDF that require uploading your sensitive documents to their servers, our online OCR scanner processes everything locally in your browser — your files never leave your device. This makes it the safest choice for confidential records, legal documents, and financial statements.
Whether you are digitizing a stack of paper records, making a scanned contract searchable, or extracting data from old invoices, our OCR engine handles it all with high accuracy across dozens of languages. There are no daily task limits, no registration walls, and no watermarks — just powerful, private text recognition that works on any device including phones and tablets.
How to OCR a PDF
Extract text from scanned PDFs in 4 simple steps:
- Upload your scanned PDF or image-based PDF by dragging it into the upload area or selecting from your device
- Select the document language for optimal text recognition accuracy
- Start OCR processing — the engine analyzes each page and recognizes text automatically
- Download your searchable PDF with embedded text, or copy the extracted text directly
When You Need PDF OCR
Digitize Paper Records
Scan paper documents and run OCR to create searchable digital archives. Find any document instantly by searching for keywords instead of flipping through physical files.
Searchable Archives
Convert entire libraries of scanned PDFs into searchable documents. Build a fully indexed archive where every word in every document can be found with a simple search.
Invoice Processing
Extract text from scanned invoices and receipts for bookkeeping, expense tracking, and accounting software. Copy amounts, dates, and vendor names directly from OCR output.
Book Digitization
Convert scanned book pages into searchable, copyable text. Ideal for researchers, students, and librarians working with digitized historical or out-of-print materials.
Medical Records
Digitize scanned medical forms, lab results, and patient records with complete privacy. Since files never leave your device, HIPAA-sensitive data stays fully protected.
Legal Document Conversion
Make scanned contracts, court filings, and legal briefs searchable and quotable. Extract specific clauses or passages without retyping entire documents by hand.
Frequently Asked Questions
What is OCR and how does it work?
OCR stands for Optical Character Recognition. It analyzes images of text - such as scanned documents, photographs of pages, or image-based PDFs - and converts the visual text into machine-readable, searchable, and copyable characters. Our tool uses advanced OCR technology running entirely in your browser to recognize text in your PDFs without uploading anything to a server.
How accurate is the OCR text recognition?
Accuracy depends on the quality of the source document. Cleanly scanned documents with standard fonts typically achieve 95-99% accuracy. Factors that affect accuracy include scan resolution (300 DPI or higher is ideal), document clarity, font style, and background contrast. Faded, skewed, or low-resolution scans may produce lower accuracy.
What languages does the OCR support?
Our OCR tool supports multiple languages including English, Spanish, French, German, Italian, Portuguese, Dutch, Chinese, Japanese, Korean, Arabic, Russian, and many more. Select the appropriate language before processing to get the best recognition accuracy for your documents.
What is the difference between a scanned PDF and a native PDF?
A native (digital) PDF contains actual text data that you can select, copy, and search. A scanned PDF is essentially an image of a document wrapped in a PDF container - the text is not selectable or searchable. OCR bridges this gap by recognizing text in scanned PDFs and converting them into searchable documents.
How long does OCR processing take?
Processing time depends on the number of pages, scan resolution, and your device performance. A single page typically takes 5-15 seconds. Multi-page documents process sequentially, so a 10-page document may take 1-3 minutes. Desktop computers generally process faster than mobile devices due to more available processing power.
Can OCR recognize handwritten text?
OCR works best with printed text, typed documents, and standard fonts. Handwritten text recognition is limited - neatly printed block letters may be partially recognized, but cursive handwriting or informal handwriting will likely not produce accurate results. For handwriting, a dedicated handwriting recognition tool is recommended.
What are the file size limits for OCR processing?
You can process PDF files up to 1GB, far exceeding the limits of most online OCR tools. Since all processing happens in your browser, very large files depend on your device memory. For optimal performance, we recommend files under 100MB. Larger files work but may take longer to process.
Are my documents kept private during OCR processing?
Yes, completely. Your files never leave your device. Unlike iLovePDF, SmallPDF, Adobe, and other online OCR services that upload your documents to their servers, our tool runs the entire OCR engine in your browser using JavaScript. No data is transmitted, stored, or accessible to anyone. This makes it ideal for sensitive documents like medical records, legal files, and financial statements.