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In-memory processing
OCR PDF runs as JavaScript inside this tab.
Never uploaded
Safe for financials, contracts and NDAs.
No caps or sign-ups
File size is limited only by device memory.
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Run OCR on a PDF to make a scanned document searchable and its text selectable, so you can find words with Ctrl+F and copy passages. The pages look exactly the same afterwards.
Also known as Searchable PDF.
No. The recognised text is laid invisibly over each page, so the scan looks identical but becomes searchable and copyable. Pages that already contain text are skipped.
Yes. OCR PDF runs entirely inside your web browser using JavaScript, so the file never leaves your device. It is safe for confidential documents such as contracts, financial records and IDs.
There is no fixed limit, because the file is processed on your own device. Very large files depend on your device's available memory; a modern laptop or phone handles hundreds of megabytes.
Yes. ZapConvert runs in any modern browser, including Safari on iPhone and iPad and Chrome on Android, with nothing to install. You can add several files at once and download them together as a ZIP.