Using OCR to redact image documents
GroupDocs.Redaction supports both types of image documents for Optical Character Recognition (OCR):
- image files, such as printed document scans (PNG, JPG, etc.)
- embedded images within office documents (PDF, DOCX, etc.)
For more details, see OCR Usage Basics article.
OCR usage limitations
There are the following limitations of the OCR with GroupDocs.Redaction v21.3:
- textual replacements are not supported, so you have to use color box replacements to redact text in images.
- Spreadsheets, HTML and Markdown document types are not supported.
We are working on removing these limitations in future releases of GroupDocs.Redaction.
You can find details and examples of using OCR with GroupDocs.Redaction in one of these guides: