Java通过第三方工具实现Word、PPT转 PDF （easy）

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我是靠谱客的博主朴素香烟，最近开发中收集的这篇文章主要介绍Java通过第三方工具实现Word、PPT转 PDF （easy），觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

前言:通过第三方工具实现将word或者ppt转为pdf格式；

1、documents4j 实现word转pdf 附：（在线预览）


<!-- documents4j word转pdf -->
<dependency>
<groupId>com.documents4j</groupId>
<artifactId>documents4j-local</artifactId>
<version>1.1.5</version>
</dependency>
<dependency>
<groupId>com.documents4j</groupId>
<artifactId>documents4j-transformer-msoffice-word</artifactId>
<version>1.1.5</version>
</dependency>

public class WORDtoODF {
public static boolean docxToPdf(String wordFilePath, String pdfFilePath) {
boolean result = false;
File inputFile = new File(wordFilePath);
File outputFile = new File(pdfFilePath);
try {
InputStream inputStream = new FileInputStream(inputFile);
OutputStream outputStream = new FileOutputStream(outputFile);
IConverter converter = LocalConverter.builder().build();
converter.convert(inputStream).as(DocumentType.DOCX).to(outputStream).as(DocumentType.PDF).execute();
outputStream.close();
result = true;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
@RequestMapping("/word2pdf")
public void word2pdf(HttpServletResponse response) {
String wordPath = "D:\home\word\aaa.docx";
String pdfPath = "D:\home\word\需求分析报告.pdf";
docxToPdf(wordPath,pdfPath);
System.out.println("转换成功");
File file = new File(pdfPath);
ResponseUtil.onlineReader(file,response);
System.out.println("执行完毕");
}
}

1.1、在线预览工具

/**
* 在线预览，附件下载 工具包
*/
public class ResponseUtil {
public static void responseBrowser(File file, HttpServletResponse response) {
//下面的是进行响应客户端的测试代码
try {
FileInputStream fileInputStream = new FileInputStream(file);
//设置Http响应头告诉浏览器下载这个附件,下载的文件名也是在这里设置的
System.out.println("file.getName()
>>>" + file.getName());
response.setHeader("Content-Disposition", "attachment;fileName=" + URLEncoder.encode(file.getName(), "UTF-8"));
// response.setHeader("Content-Disposition", "inline;fileName=" + URLEncoder.encode(file.getName(), "UTF-8"));
System.out.println("file.getPath() >>>>>>" + file.getPath());
OutputStream outputStream = null;
outputStream = response.getOutputStream();
byte[] bytes = new byte[2048];
int len = 0;
while ((len = fileInputStream.read(bytes)) > 0) {
outputStream.write(bytes, 0, len);
}
fileInputStream.close();
outputStream.close();
} catch (IOException e) {
e.printStackTrace();
System.out.println("文件响应出错，读写出错");
}
}
public static void onlineReader(File file, HttpServletResponse response) {
if (file.exists()) {
byte[] data = null;
try {
response.setHeader("Content-Disposition", "inline;fileName=" + URLEncoder.encode(file.getName(), "UTF-8"));
FileInputStream input = new FileInputStream(file);
data = new byte[input.available()];
input.read(data);
response.getOutputStream().write(data);
input.close();
} catch (Exception e) {
System.out.println(e);
}
} else {
System.out.println("文件不存在");
}
}
}

2、Apach POI实现ppt转pdf

 <dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.0.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>4.1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>4.1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi-scratchpad -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-scratchpad</artifactId>
<version>4.1.2</version>
</dependency>

public class PPTtoPDF {
private static final String path = "D:\home\ppt\";
public static void main(String[] args) throws Exception {
System.out.println(new Date().toString());
String wordPath = "D:\home\ppt\eee.pptx";
String pdfPath = "D:\home\ppt\eee.pdf";
File inputFile = new File(wordPath);
File outputFile = new File(pdfPath);
if (!outputFile.exists())
outputFile.createNewFile();
convertPPTToPDF(inputFile,outputFile);
System.out.println(new Date().toString());
System.out.println("转换成功");
}
public static boolean convertPPTToPDF(File file, File toFile) {
try {
Document pdfDocument = new Document();
PdfWriter pdfWriter = PdfWriter.getInstance(pdfDocument, new FileOutputStream(toFile));
FileInputStream is = new FileInputStream(file);
HSLFSlideShow hslfSlideShow = convertPPTToPDFByPPT(is);
double zoom = 2;
if (hslfSlideShow == null) {
is = new FileInputStream(file);
XMLSlideShow ppt = convertPPTToPDFByPPTX(is);
if (ppt == null) {
throw new NullPointerException("This PPTX get data is error....");
}
Dimension pgsize = ppt.getPageSize();
List<XSLFSlide> slide = ppt.getSlides();
AffineTransform at = new AffineTransform();
at.setToScale(zoom, zoom);
pdfDocument.setPageSize(new Rectangle((float) pgsize.getWidth(), (float) pgsize.getHeight()));
pdfWriter.open();
pdfDocument.open();
PdfPTable table = new PdfPTable(1);
for (XSLFSlide xslfSlide : slide) {
BufferedImage img = new BufferedImage((int) Math.ceil(pgsize.width * zoom), (int) Math.ceil(pgsize.height * zoom), BufferedImage.TYPE_INT_RGB);
Graphics2D graphics = img.createGraphics();
graphics.setTransform(at);
graphics.setPaint(Color.white);
graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));
xslfSlide.draw(graphics);
graphics.getPaint();
Image slideImage = Image.getInstance(img, null);
table.addCell(new PdfPCell(slideImage, true));
}
ppt.close();
pdfDocument.add(table);
pdfDocument.close();
pdfWriter.close();
System.out.println(file.getAbsolutePath() + "Powerpoint file converted to PDF successfully");
return true;
}
Dimension pgsize = hslfSlideShow.getPageSize();
List<HSLFSlide> slides = hslfSlideShow.getSlides();
pdfDocument.setPageSize(new Rectangle((float) pgsize.getWidth(), (float) pgsize.getHeight()));
pdfWriter.open();
pdfDocument.open();
AffineTransform at = new AffineTransform();
PdfPTable table = new PdfPTable(1);
for (HSLFSlide hslfSlide : slides) {
BufferedImage img = new BufferedImage((int) Math.ceil(pgsize.width * zoom), (int) Math.ceil(pgsize.height * zoom), BufferedImage.TYPE_INT_RGB);
Graphics2D graphics = img.createGraphics();
graphics.setTransform(at);
graphics.setPaint(Color.white);
graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));
hslfSlide.draw(graphics);
graphics.getPaint();
Image slideImage = Image.getInstance(img, null);
table.addCell(new PdfPCell(slideImage, true));
}
hslfSlideShow.close();
pdfDocument.add(table);
pdfDocument.close();
pdfWriter.close();
System.out.println(file.getAbsolutePath() + "Powerpoint file converted to PDF successfully");
return true;
} catch (Exception e) {
System.out.println(file.getAbsolutePath() + "--->" + e.getMessage());
return false;
}
}
private static XMLSlideShow convertPPTToPDFByPPTX(FileInputStream is) {
try {
return new XMLSlideShow(is);
} catch (IOException e) {
return null;
}
}
private static HSLFSlideShow convertPPTToPDFByPPT(FileInputStream is) {
try {
return new HSLFSlideShow(is);
} catch (Exception e) {
return null;
}
}
}