This Group Policy setting lets users turn off the performance optimization so that the TIFF IFilter will perform OCR for ...

This Group Policy setting lets users turn off the performance optimization so that the TIFF IFilter will perform OCR for every page in a TIFF document, which allows indexing of all recognized text. By default, the TIFF IFilter optimizes its performance by skipping OCR (Optical Character Recognition) for document pages that have non-textual content (for example, pictures). In some cases, pages that contain text can be misclassified as non-text pages. If this is the case, the text in these pages will not be indexed.

        If you enable this setting, TIFF IFilter will perform OCR for every page in a TIFF document to index all recognized text. Therefore, the OCR process will be slower. This decrease in performance can be significant if there are lots of non-textual pages (pictures) in TIFF documents on the system.

        If you disable or do not configure this setting, TIFF IFilter will optimize its performance by skipping non-textual content during the OCR process.