将PDF转换为DOCX而不改变格式

Question

我试图将包含表格的PDF文件转换为DOCX类型。当我尝试转换它时，我只将输出作为纯文本。如何将包含表格的整个PDF转换为DOCX而不改变格式？我尝试使用JAVA，这是片段。

public static void main(String[] args) throws IOException {
        System.out.println("Document converted started");
        XWPFDocument doc = new XWPFDocument();
        String pdf = "C:\\Users\\30216\\Desktop\\wordtopdf\\sample_full.pdf";
        PdfReader reader = new PdfReader(pdf);
        PdfReaderContentParser parser = new PdfReaderContentParser(reader);
        for (int i = 1; i <= reader.getNumberOfPages(); i++) {
            TextExtractionStrategy strategy = parser.processContent(i,
                    new SimpleTextExtractionStrategy());
            String text = strategy.getResultantText();
            XWPFParagraph p = doc.createParagraph();
            XWPFRun run = p.createRun();
            run.setText(text);
            run.addBreak(BreakType.PAGE);
        }
        FileOutputStream out = new FileOutputStream("C:\\Users\\30216\\Desktop\\wordtopdf\\pdftoword.docx");
        doc.write(out);
        out.close();
        reader.close();
        System.out.println("Document converted successfully");
    }
}