参考：

https://blog.csdn.net/weixin_43907947/article/details/118992070

Excel2PdfUtil.java

import com.aspose.cells.License;
import com.aspose.cells.PdfSaveOptions;
import com.aspose.cells.Workbook;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;


public class Excel2PdfUtil {
    /**
     * excel文件导出为PDF文件
     * @param Address 需要转化的Excel文件地址，
     *
     */
        public static void excel2pdf(String Address) {
            if (!getLicense()) {   // 验证License 若不验证则转化出的pdf文档会有水印产生
                return;
            }
            try {
                File pdfFile = new File("src/main/resources/template/肩关节功能评定量表.pdf"); // 输出路径
                FileInputStream excelstream = new FileInputStream(Address);
                Workbook wb = new Workbook(excelstream);// excel路径，这里是先把数据放进缓存表里，然后把缓存表转化成PDF
                FileOutputStream fileOS = new FileOutputStream(pdfFile);
                PdfSaveOptions pdfSaveOptions = new PdfSaveOptions();
                pdfSaveOptions.setOnePagePerSheet(true);//参数true把内容放在一张PDF页面上；
                wb.save(fileOS, pdfSaveOptions);
                fileOS.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

        //获取认证，去除水印
        public static boolean getLicense() {
            boolean result = false;
            try {
                InputStream is = Excel2PdfUtil.class.getClassLoader().getResourceAsStream("license.xml");//这个文件应该是类似于密码验证(证书？)，用于获得去除水印的权限
                License aposeLic = new License();
                aposeLic.setLicense(is);
                result = true;
            } catch (Exception e) {
                e.printStackTrace();
            }
            return result;
        }
}

jar包下载：http://pan.jbritian.com/share/6db381e5c117483abbe80504ca9684d9

license.xml（放在resource目录下）:

<?xml version="1.0" encoding="UTF-8"?>
<License>
<Data>
    <Products>
        <Product>Aspose.Total for Java</Product>
        <Product>Aspose.Excel for Java</Product>
    </Products>
    <EditionType>Enterprise</EditionType>
    <SubscriptionExpiry>20991231</SubscriptionExpiry>
    <LicenseExpiry>20991231</LicenseExpiry>
    <SerialNumber>8bfe198c-7f0c-4ef8-8ff0-acc3237bf0d7</SerialNumber>
</Data>
<Signature>sNLLKGMUdF0r8O1kKilWAGdgfs2BvJb/2Xp8p5iuDVfZXmhppo+d0Ran1P9TKdjV4ABwAgKXxJ3jcQTqE/2IRfqwnPf8itN8aFZlV3TJPYeD3yWE7IT55Gz6EijUpC7aKeoohTb4w2fpox58wWoF3SNp6sK6jDfiAUGEHYJ9pjU=</Signature>
</License>