OCR searchable PDF
Run Tesseract on each page and rebuild with an invisible text layer (best-effort).
Runs in this tab. The file stays here.
About OCR searchable PDF
Run Tesseract OCR on each PDF page in your tab and rebuild with an invisible text layer — best-effort searchable PDF.
Scans are pictures pretending to be documents. OCR searchable PDF renders each page, runs Tesseract in the browser, and rebuilds with the page image plus an invisible text layer so find-in-page and copy have something to grab.
Alignment is best-effort. The image is the visual source of truth; search/select can be imperfect, and very long pages truncate the invisible text budget. English is the practical language pack here.
Edit PDF text can also OCR when you want to fix wording after recognition. Extract text needs a layer that already exists.
How to use OCR searchable PDF
- 1Drop a scanned or image-heavy PDF.
- 2Run OCR and wait for per-page progress.
- 3Download the searchable PDF and try Find for a known word.
What it won't do
- Best-effort invisible text — not a perfect hOCR layout clone.
- Heavy page counts take time in the browser.
Common questions
Is this as good as Adobe OCR?
It is Tesseract in a tab — solid for clean scans, weaker on skew, handwriting, and tiny type. No cloud boost.
Which languages are supported?
The wired path is English for this build. Other languages would mean shipping more traineddata.
Does OCR upload my scan?
No. Tesseract runs locally after the worker/assets load from this origin.
Related tools
Why this one doesn't upload your file
There is no server to upload to. This page is a static file, and the work happens in your browser using the same graphics and WebAssembly code that renders every other site you visit. Your file is read from disk into memory, processed, and handed back as a download. Once the page has loaded you can disconnect from the network entirely and it keeps working. The longer explanation