<dependency>
            <groupId>net.sf.cssbox</groupId>
            <artifactId>pdf2dom</artifactId>
            <version>1.8</version>
        </dependency>

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;
import java.io.Writer;
import javax.xml.parsers.ParserConfigurationException;
import org.apache.commons.io.FileUtils;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.fit.pdfdom.PDFDomTree;
import org.fit.pdfdom.PDFDomTreeConfig;
import org.junit.Test;
public class TestPDFDomTree {
    public static String parseWithPdfDomTree(InputStream is, int startPage, int endPage, PDFDomTreeConfig config)
            throws IOException, ParserConfigurationException {
        PDDocument pdf = PDDocument.load(is);
        PDFDomTree parser = new PDFDomTree(config);
        parser.setStartPage(startPage);
        parser.setEndPage(endPage);
        Writer output = new StringWriter();
        parser.writeText(pdf, output);
        pdf.close();
        String htmlOutput = output.toString();
        return htmlOutput;
    @Test
    public void test_convert_pdf_to_html() throws Exception {
        PDFDomTreeConfig config = PDFDomTreeConfig.createDefaultConfig();