OCR PDF
Make scanned PDFs searchable and selectable. Accepts PDF up to 20 MB. Produces searchable PDF, TXT, or Markdown. Processing runs on demand with Cloudflare Workers AI without FileClear AI file storage.
Input: PDF up to 20 MB · Output: searchable PDF, TXT, or Markdown
Quality boundary
The default searchable PDF preserves each rendered scan page and adds a selectable OCR text layer. Text placement is approximate, and complex reading order or uncertain characters still require review; TXT and Markdown remain optional exports.
How this file is processed
Cloudflare processes the request on demand; FileClear AI does not save the uploaded bytes or generated result in R2. Review the result before consequential use.
Read the complete PDF OCR guide
Useful next actions
Make scanned PDFs searchable, then verify the text layer.
OCR keeps each scan page visible while adding a searchable, selectable text layer by default. TXT and Markdown are optional exports, and recognition quality still depends on resolution, rotation, language, contrast, and layout.
Prepare pages for recognition
Straighten rotated pages, crop unnecessary borders, and preserve enough contrast to distinguish punctuation and thin strokes. Around 300 dpi is a practical starting point for ordinary printed text, while tiny type or degraded originals may require more. Select the correct document language when automatic detection is unreliable.
Review high-risk text
Search for names, dates, totals, identifiers, negative terms, and uncommon technical language. Check reading order in columns and tables, and compare uncertain output directly with the page image. The original scan remains the source of truth for consequential use.
Quick quality check
- Correct page rotation
- Choose the document language
- Verify names and numbers
- Check column reading order
- Keep page references