OCR PDF
Make a scanned PDF searchable and copyable.
Runs entirely in your browser. Verify it in your network tab.
Choosing only the language on the page is a little faster and more accurate.
What this does
Each page is drawn at about 300 dpi and read by Tesseract, running in your browser, in English, Malay or both. The words are laid over the original page as invisible text, as a scanner does, so the page looks exactly the same but you can now search, select and copy it. The recognised text is shown too, ready to copy.
Limits
- The first run downloads the OCR engine and language data once, about 15 MB, from this site.
- Accuracy depends on the scan: skewed, blurred, low-resolution or handwritten pages read poorly.
- Tables and columns come out as plain lines of text in the copy, although the invisible layer sits over the right words.
- Large documents take a while: around a few seconds per page.
Is this private?
Yes, and you can check rather than take our word for it. Open your browser's network tab and run the tool: your file never appears in it, because there is no server to send it to. The whole site is static files, plus the WebAssembly engine that does the work, which is served from this same domain.