java通过aspose实现word转pdf，加水印

引入jar

 <!-- word转pdf--><dependency><groupId>com.aspose.words</groupId><artifactId>aspose-words</artifactId><version>21.11.0-jdk17</version></dependency><!-- 加水印--><dependency><groupId>com.lowagie</groupId><artifactId>itext</artifactId><version>4.2.0</version></dependency>

代码

import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;import com.aspose.words.Document;
import com.aspose.words.HeaderFooter;
import com.aspose.words.HeaderFooterType;
import com.aspose.words.Node;
import com.aspose.words.Paragraph;
import com.aspose.words.Section;
import com.aspose.words.Shape;
import com.aspose.words.ShapeType;
import com.lowagie.text.Image;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfGState;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfStamper;/**** @Title: WordToPdfUtils* aspose 收费* @Description:*/public class WordToPdfUtils {/*** word to pdf ---com.aspose.words** @param inPath 原始word 全路径* @param outPath 生成的pdf 全路径* @param  outPdfAndWaterMarkPath 带水印的pdf全路径* @param waterMarkImagePath 水印图片的全路径* @author an* @throws Exception*/public static String docPdf(String inPath, String outPath,String outPdfAndWaterMarkPath, String waterMarkImagePath) {FileOutputStream fileOS = null;FileOutputStream fileOS2 = null;// 1 验证aspose.word组件是否授权if (!isWordLicense()) {return null;}// 2 word转pdftry {Document doc = new Document(inPath);// 原始word路径fileOS = new FileOutputStream(new File(outPath));// 输出路径doc.save(fileOS, com.aspose.words.SaveFormat.PDF);
//          fileOS.close();System.out.println("word转pdf--ok");// 3设置pdf的header，否则加水印报错Node watermark = new Shape(doc, ShapeType.IMAGE);Paragraph watermarkPara = new Paragraph(doc);watermarkPara.appendChild(watermark);for (Section sect : doc.getSections()) {insertWatermarkIntoHeader(watermarkPara, sect,HeaderFooterType.HEADER_PRIMARY);insertWatermarkIntoHeader(watermarkPara, sect,HeaderFooterType.HEADER_FIRST);insertWatermarkIntoHeader(watermarkPara, sect,HeaderFooterType.HEADER_EVEN);}System.out.println("Watermark Set");// 4添加水印fileOS2 = new FileOutputStream(new File(outPdfAndWaterMarkPath));BufferedOutputStream bos = new BufferedOutputStream(fileOS2);PdfReader reader = new PdfReader(outPath);PdfStamper stamper = new PdfStamper(reader, bos);int total = reader.getNumberOfPages() + 1;PdfContentByte content;PdfGState gs = new PdfGState();for (int i = 1; i < total; i++) {// content = stamper.getOverContent(i);// 在内容上方加水印content = stamper.getUnderContent(i);// 在内容下方加水印gs.setFillOpacity(0.2f);// 水印透明度content.setGState(gs);Image image = Image.getInstance(waterMarkImagePath);/** img.setAlignment(Image.LEFT | Image.TEXTWRAP);* img.setBorder(Image.BOX); img.setBorderWidth(10);* img.setBorderColor(BaseColor.WHITE);* img.scaleToFit(100072);//大小 img.setRotationDegrees(-30);//旋转*/image.setAbsolutePosition(200, 206); // set the first background// image of the absoluteimage.scaleToFit(200, 200);content.addImage(image);System.out.println("Watermark--ok");}stamper.close();} catch (Exception e) {e.printStackTrace();System.out.println("word转pdf失败");}finally{if(fileOS !=null){try {closeStream(fileOS);} catch (IOException e) {e.printStackTrace();}}if(fileOS2 !=null){try {closeStream(fileOS2);} catch (IOException e) {e.printStackTrace();}}}// EPUB, XPS, SWF 相互转换return outPdfAndWaterMarkPath;}private static void insertWatermarkIntoHeader(Paragraph watermarkPara,Section sect, int headerType) throws Exception {HeaderFooter header = sect.getHeadersFooters().getByHeaderFooterType(headerType);if (header == null) {header = new HeaderFooter(sect.getDocument(), headerType);sect.getHeadersFooters().add(header);}header.appendChild(watermarkPara.deepClone(true));}/*** @Description: 验证aspose.word组件是否授权：无授权的文件有水印和试用标记*/public static boolean isWordLicense() {boolean result = false;try {// 避免文件遗漏String licensexml = "<License>\n"+ "<Data>\n"+ "<Products>\n"+ "<Product>Aspose.Total for Java</Product>\n"+ "<Product>Aspose.Words for Java</Product>\n"+ "</Products>\n"+ "<EditionType>Enterprise</EditionType>\n"+ "<SubscriptionExpiry>20991231</SubscriptionExpiry>\n"+ "<LicenseExpiry>20991231</LicenseExpiry>\n"// +// "<SerialNumber>23dcc79f-44ec-4a23-be3a-03c1632404e9</SerialNumber>\n"+ "<SerialNumber>8bfe198c-7f0c-4ef8-8ff0-acc3237bf0d7</SerialNumber>\n"+ "</Data>\n"+ "<Signature>\n"+ "sNLLKGMUdF0r8O1kKilWAGdgfs2BvJb/2Xp8p5iuDVfZXmhppo+d0Ran1P9TKdjV4ABwAgKXxJ3jcQTqE/2IRfqwnPf8itN8aFZlV3TJPYeD3yWE7IT55Gz6EijUpC7aKeoohTb4w2fpox58wWoF3SNp6sK6jDfiAUGEHYJ9pjU=</Signature>\n"+ "</License>";InputStream inputStream = new ByteArrayInputStream(licensexml.getBytes());com.aspose.words.License license = new com.aspose.words.License();license.setLicense(inputStream);closeStream(inputStream);result = true;} catch (Exception e) {e.printStackTrace();System.out.println(" 验证aspose.word组件是否授权失败");}return result;}private static void closeStream(OutputStream outputStream)throws IOException {if (outputStream != null) {outputStream.close();}}private static void closeStream(InputStream inputStream) throws IOException {if (inputStream != null) {inputStream.close();}}public static void main(String[] args) throws IOException {try {String inPath = "D:/app/通知.docx";String outPath = "D:/app/文件_1.pdf";String outPdfAndWaterMarkPath = "D:/app/文件_2.pdf";String waterMarkPath = "D:/app/logo.jpg";docPdf(inPath, outPath, outPdfAndWaterMarkPath, waterMarkPath);} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}}}

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