OCR is an abbreviation for Optical Character Recognition, which is the process of identifying and extracting searchable text from electronic files, such as PDFs and TIFF images. OCR often is utilized to increase the efficacy of text searches, but can be limited by the quality and nature of the documents lacking searchable text. Although OCR can lead to more documents being identified, the process of applying OCR can increase the time and/or cost of eDiscovery processing.