public OCRStrategyAuto getOcrStrategyAuto() {
        return ocrStrategyAuto;
    }
@return ocr auto strategy to use when ocr_strategy = Auto
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-pdf-module/src/main/java/org/apache/tika/parser/pdf/PDFParserConfig.java