java利用 aspose-words Word或Excel 转Pdf（无水印、页数限制）

mvn install:install-file -Dfile=D:\aspose-words-15.8.0-jdk16.jar -DgroupId=com.Jcraft -DartifactId=aspose-words  -Dversion=1.25 -Dpackaging=jar

mvn install:install-file -Dfile=D:\aspose-cells-8.5.2.jar -DgroupId=com.Jcraft -DartifactId=aspose-cells  -Dversion=1.25 -Dpackaging=jar

<dependency>
    <groupId>com.jcraft</groupId>
    <artifactId>aspose-words</artifactId>
    <version>1.25</version>
</dependency>

<dependency>
    <groupId>com.jcraft</groupId>
    <artifactId>aspose-cells</artifactId>
    <version>1.25</version>
</dependency>

<License>
<Data>
<Products>
<Product>Aspose.Total for Java</Product>
<Product>Aspose.Words 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>

java.lang.NullPointerException: stream
	at com.aspose.words.License.setLicense(Unknown Source)
	at com.dxl.core.PdfUtil.getLicense(PdfUtil.java:22)
	at com.dxl.core.PdfUtil.excel2pdf(PdfUtil.java:56)
	at com.dxl.core.PdfUtil.main(PdfUtil.java:82)

//Word方法中的 
if (!getLicense()) { // 验证License 若不验证则转化出的pdf文档会有水印产生
            return;
        }

//Excel方法中的 
 if (!getLicense()) { // 验证License 若不验证则转化出的pdf文档会有水印产生
            return;
        }

package com.dxl.core;

import com.aspose.cells.Workbook;
import com.aspose.words.Document;
import com.aspose.words.License;

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

/**
 * <b>
 * </b><br><br><i>Description</i> :
 * <br><br>Date: 2019/11/12 ${time}    <br>Author : dxl
 */
public class PdfUtil {
    private static boolean getLicense() {
        boolean result = false;
        try {
//            InputStream is = PdfUtil.class.getClassLoader().getResourceAsStream("license.xml"); // license.xml应放在..\WebRoot\WEB-INF\classes路径下
//通过下面直接配置licence路径更方便，路径可以当参数、或者配置在配置文件中，自行修改
InputStream is =  new FileInputStream("C:\\Users\\00\\Desktop\\baogao\\license.xml");
            License aposeLic = new License();
            aposeLic.setLicense(is);
            result = true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }

    /**
     * @param wordPath 需要被转换的word全路径带文件名
     * @param pdfPath 转换之后pdf的全路径带文件名
     */
    public static void doc2pdf(String wordPath, String pdfPath) {
        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 {
            long old = System.currentTimeMillis();
            File file = new File(pdfPath); //新建一个pdf文档
            FileOutputStream os = new FileOutputStream(file);
            Document doc = new Document(wordPath); //Address是将要被转化的word文档
            doc.save(os, com.aspose.words.SaveFormat.PDF);//全面支持DOC, DOCX, OOXML, RTF HTML, OpenDocument, PDF, EPUB, XPS, SWF 相互转换
            long now = System.currentTimeMillis();
            os.close();
            System.out.println("共耗时：" + ((now - old) / 1000.0) + "秒"); //转化用时
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    /**
     * @param excelPath 需要被转换的excel全路径带文件名
     * @param pdfPath 转换之后pdf的全路径带文件名
     */
    public static void excel2pdf(String excelPath, String pdfPath) {
        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 {
            long old = System.currentTimeMillis();
            Workbook wb = new Workbook(excelPath);// 原始excel路径
            FileOutputStream fileOS = new FileOutputStream(new File(pdfPath));
            wb.save(fileOS, com.aspose.cells.SaveFormat.PDF);
            fileOS.close();
            long now = System.currentTimeMillis();
            System.out.println("共耗时：" + ((now - old) / 1000.0) + "秒"); //转化用时
        } catch (Exception e) {
            e.printStackTrace();
        }
    }



    public static void main(String[] args) {

        //word 和excel 转为pdf
        String filePaths="E:\\myGiteeProject\\mygenerator\\src\\main\\resources\\testdocx\\demo3.docx";
        String fileName="zsqexcel80";
        String pdfPath="E:\\myGiteeProject\\mygenerator\\src\\main\\resources\\testdocx\\"+fileName+".pdf";
//        doc2pdf(filePaths, pdfPath);//filePaths需要转换的文件位置 pdfPath为存储位置
        String excel2pdf="E:\\myGiteeProject\\mygenerator\\src\\main\\resources\\testdocx\\cells.xlsx";
        excel2pdf(excel2pdf,pdfPath);
    }
}

<a href="E:\myGiteeProject\mygenerator\src\main\resources\testdocx\zsqexcel78.pdf">PDF预览连接--路径</a>