PDF OCR

A scanned PDF is essentially a collection of images — even though you can see the text, your computer cannot read it, search it, or copy it. OCR (Optical Character Recognition) solves this by analyzing the image, recognizing the actual letters and words inside, and adding an invisible text layer on top. The result is a PDF that looks identical to the original scan but is now fully searchable, copyable, and editable.

This is one of the most useful document tasks for anyone working with scanned paperwork. Government certificates, old land records, medical reports, legal documents, court orders, school mark sheets, and historical records are almost always available only as scanned PDFs. Without OCR, finding a specific word or copying a paragraph from these documents is impossible — you have to retype everything manually.

Our PDF OCR tool processes scanned PDFs in 40+ languages including English, Hindi, Marathi, Bengali, Gujarati, Tamil, Telugu, Kannada, Malayalam, Punjabi, Urdu, Arabic, Chinese, Japanese, French, German, Spanish, and more. You can process the entire PDF or only specific pages — useful when you need to extract text from a single page in a large document. Once OCR is complete, you download a new PDF with the original visual quality preserved and a searchable text layer added on top.

This is especially useful for Indian users dealing with documents from government portals, district offices, banks, and educational institutions. Old documents scanned years ago can finally be searched, indexed, and used digitally without retyping.

All OCR processing runs entirely in your browser using Tesseract.js. The PDF file is never uploaded to any server, ensuring complete privacy for sensitive personal, legal, and financial documents.

Making a scanned PDF searchable takes just a few clicks. Here is the complete process.

Step 1: Upload Your Scanned PDF
Click the upload zone or drag and drop your scanned PDF onto the page. The tool accepts any standard PDF — single page or multi-page, small or large. The file size and page count are detected and displayed immediately.

Step 2: Select Document Language
Choose the language used in your document from the dropdown. The list is organized by region — Most Common (English, Hindi, Marathi, Arabic, Chinese, French, German, Spanish), South Asian (Bengali, Gujarati, Kannada, Malayalam, Odia, Punjabi, Tamil, Telugu, Urdu), European, and Other categories. Selecting the correct language is the single most important factor for OCR accuracy.

Step 3: Choose Pages to Process
Select All Pages to OCR the entire document. Choose Odd Pages or Even Pages for double-sided scans where only one side has content. Use Custom Range to process specific pages — for example, 1-3, 5, 7-10 will process pages 1, 2, 3, 5, 7, 8, 9, and 10 only. Processing fewer pages is faster and uses less memory.

Step 4: Start OCR Processing
Click Start OCR Processing. A progress bar shows which page is being analyzed and how much is left. OCR typically takes 5 to 15 seconds per page depending on document complexity and device speed. Larger or higher-resolution scans take longer.

Step 5: Download Searchable PDF
Once processing completes, the result panel appears with the new PDF. Optionally rename the file, then click Download Searchable PDF. The output looks identical to your original scan but every word is now searchable using Ctrl+F and copyable using Ctrl+C in any PDF reader.

For best OCR accuracy, make sure your scanned PDF is high quality. Documents scanned at 300 DPI or higher produce significantly better results than low-resolution photos taken with a mobile camera. If the original scan is blurry, tilted, or has shadows, OCR accuracy will drop noticeably.

Always select the correct document language. Selecting English for a Marathi or Hindi document will produce garbage output. If your document contains text in two languages — such as a Marathi government form with English headers — select the dominant language for the main content.

For multi-page documents, processing time adds up quickly. A 50-page PDF can take 5 to 12 minutes on a modern device. If you only need text from specific pages, use the Custom Range option to save significant time.

For old or faded documents, expect lower accuracy — even commercial OCR systems struggle with degraded scans. For critical documents, manually verify the extracted text after OCR is complete.

If your PDF is password protected, unlock it first using our PDF Lock Unlock tool, then run OCR on the unlocked file.