In McAfee DLP Discover, you can use the OCR feature when scanning any file-based repository. Database scans are not supported. In McAfee DLP appliances, you can use the OCR feature when scanning images attached to emails, uploaded in web posts, or found in other network traffic.OCR is part of the text extraction feature. When the text extractor comes across an image file, a second pass is made with OCR to extract text and classify, remediate, or register the file according to the relevant rules. The feature also works with images saved as a .pdf file. If a .pdf file contains both text and images, it is scanned as a text file in the usual way. For example, McAfee DLP appliances monitor a hardcopy sensitive document scanned and sent via email as a .pdf attachment. OCR scanning works with all McAfee DLP-supported languages, and most Western and Asian languages.