You can run OCR on a PDF for free without uploading it to a server. Inkfolio recognizes the text in scanned pages entirely on your own device.
What OCR actually does
OCR (optical character recognition) looks at a scanned page — which is really just an image — and recognizes the letters and words within it, turning what was a picture of text into actual, selectable text. This is the missing step for scanned documents that other tools (like PDF to Word or PDF to Text) can’t process on their own.
Step-by-step: running OCR on a PDF
- Go to Inkfolio’s OCR PDF tool
- Upload your scanned PDF
- Click “Run OCR”
- Wait while the tool recognizes text on each page
- Download your searchable PDF
What changes after OCR
The page still looks the same visually, but now has a hidden text layer behind the image — so you can select, copy, and search text that previously only existed as pixels. This also makes the document usable with other tools, since a PDF to Word or PDF to Text conversion only works once there’s real text to extract.
What it’s good for
- Making old scanned documents searchable in a PDF reader
- Preparing a scanned contract or form for text extraction or editing
- Archiving paper documents so their content can be searched later
- Turning a photographed page into something you can copy text from
A quick honest note on accuracy
OCR accuracy depends heavily on scan quality — a clean, high-resolution scan of clear printed text converts with very few errors, while a blurry photo, low-resolution scan, or handwritten document produces much less reliable results. Handwriting in particular is far less accurate than printed text, since OCR is built primarily to recognize consistent, printed characters.
How to tell if your PDF actually needs OCR
Try selecting text on the page (Ctrl+A, or click and drag over a paragraph). If nothing highlights, or the whole page selects as one block, the page is an image and needs OCR to become searchable. If text highlights normally, the PDF already has a text layer and OCR isn’t necessary.
What languages does OCR support
OCR tools generally support recognition in multiple languages, though accuracy is typically highest for the language the tool is optimized for. If your document mixes languages on the same page, results can be less consistent than a document written entirely in one language. It’s worth checking a sample page first if you’re working with a less common language or a mixed-language document.
OCR and document archiving
For anyone digitizing paper records — old contracts, historical documents, personal archives — OCR is often the step that makes scanning worthwhile beyond just having a digital copy. A scanned-but-not-OCR’d archive is really just a folder of images; running OCR turns it into something you can actually search through years later instead of opening file after file to find what you need.
Does OCR fix a bad scan
No. OCR recognizes text that’s present in the image — it can’t invent text that’s too blurry, faded, or cut off to read. If the original scan quality is poor, re-scanning at a higher resolution before running OCR will produce better results than trying to run OCR on a low-quality scan and hoping for the best.
What you can do with a searchable PDF afterward
Once OCR has added a text layer, the document works with other tools the same way a text-based PDF would — you can convert it to Word or plain text, search within it using Ctrl+F, or copy specific passages directly. This is often the point of running OCR in the first place: not just to view the document, but to make it usable the same way any other digital text file is.
Try it
Make your old scans searchable. Run OCR here — free, no account, nothing uploaded to a server
