When local OCR is the right first step
OCR is useful when the PDF page is really an image scan and you need to review or rewrite detected text before export. In PDF Processor, the clearest OCR path is the Edit PDF workspace, where scanned-page mode can detect text locally and let you review the result before producing a new copy.
This is a better fit for privacy-sensitive scans than an upload-first OCR workflow when the document can be handled by the browser and the source file should stay close to the device.
What OCR can and cannot promise
OCR is not the same as perfect conversion. Blurry scans, handwriting, unusual fonts, rotated pages, heavy compression, and mixed-language documents can reduce accuracy. Very large files can also hit browser memory or device limits.
Treat OCR output as a draft that needs review. If the text matters for legal, financial, medical, academic, or official use, compare the result against the original page before sharing it.
| Workflow | Best fit | Use another route when |
|---|---|---|
| OCR PDF | A scanned page needs detected text for review or local rewrite. | The PDF already has selectable text. |
| Edit PDF | Detected or existing text needs a careful local rewrite. | You only need page order, compression, or password checks. |
| PDF editability checker | You need to know whether the file is text-based, scanned, locked, or form-heavy. | You already know the file needs OCR work. |
A cautious local OCR sequence
Start by checking whether the PDF is text-based or scanned. If it is scanned, open Edit PDF and use the scanned PDF mode for the pages that need OCR review. After OCR, review the detected text, fix only what you can verify, and export a fresh copy.
Do not use OCR as a blind batch conversion step for sensitive documents. The privacy benefit comes from keeping the workflow local, but the quality check still belongs to you.