Scanned PDFs and OCR
更新于 2026年7月22日
Paper scans work too. When a document has no text layer, it goes through OCR automatically.
How scanned documents are handled
- Upload the scan like any PDF; no separate setting is needed.
- A notice tells you the document was recognized as a scan and OCR ran. This is informational, not an error.
- Detection then runs on the recognized text, so pattern and AI findings work the same as on digital documents.
What to expect
- OCR quality follows scan quality. Clean, straight, high-resolution scans give the best results.
- Faint stamps, handwriting, and skewed pages may not be recognized; cover those with manual boxes.
- Review is extra important on scans: spot-check each page rather than trusting the finding list alone.