sample-configs/customocr/tika-config-inline.xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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  ~ contributor license agreements.  See the NOTICE file distributed with
  ~ this work for additional information regarding copyright ownership.
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  ~    http://www.apache.org/licenses/LICENSE-2.0
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  -->
<properties>
  <parsers>     
        <!-- Load TesseractOCRParser (could use DefaultParser if you want others too) -->
        <parser class="org.apache.tika.parser.ocr.TesseractOCRParser"/>   

        <!-- Extract and OCR Inline Images in PDF -->
        <parser class="org.apache.tika.parser.pdf.PDFParser">
            <params>
                <param name="extractInlineImages" type="bool">true</param>
            </params>
        </parser>
        
  </parsers>
</properties>