我要评论Java使用apache的poi将PPT转PDF文件，支持并兼容PPT和PPTX文件
前言：使用apache的poi，免费
废话不多说，贴代码：
package com.junit;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;
import org.apache.poi.hslf.usermodel.HSLFSlide;
import org.apache.poi.hslf.usermodel.HSLFSlideShow;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xslf.usermodel.XSLFSlide;
import com.itextpdf.text.Document;
import com.itextpdf.text.Image;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;
public class PPTtoPDF {
private static final String path = "D:\\_my_del\\ppt\\";
public static void main(String[] args) throws Exception {
File file2 = new File(path + "ResultG/");
if (!file2.exists())
file2.mkdirs();
File file = new File(path);
for (File f : file.listFiles()) {
if (!f.isFile())
continue;
file2 = new File(path + "ResultG/" + file.getName() + ".pdf");
if (!file2.exists())
file2.createNewFile();
new PPTtoPDF().convertPPTToPDF(f, file2);
}
}
public 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 XMLSlideShow convertPPTToPDFByPPTX(FileInputStream is) {
try {
return new XMLSlideShow(is);
} catch (IOException e) {
return null;
}
}
private HSLFSlideShow convertPPTToPDFByPPT(FileInputStream is) {
try {
return new HSLFSlideShow(is);
} catch (Exception e) {
return null;
}
}
}
HSLFSlideShow 用于ppt文件，XMLSlideShow 用于pptx文件。
该代码需要jar包支持，为方便下载，已上传至本资源库，链接：
https://download.csdn.net/download/qq_26599807/12670074
- 扩展：
POI官方网站及下载：
POI下载地址2：https://downloads.apache.org/poi/
本文地址：https://blog.csdn.net/qq_26599807/article/details/107657890
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