public OCR_RENDERING_STRATEGY getOcrRenderingStrategy() {
        return ocrRenderingStrategy;
    }
Which strategy to use for OCR

@param ocrStrategyString
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-pdf-module/src/main/java/org/apache/tika/parser/pdf/PDFParserConfig.java