如何将 ppt 文件转换为 Java 中的 pdf 文件? [英] How to Convert a ppt file into pdf file in Java?
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问题描述
我想将 MS powerpoint (ppt) 文档转换为 PDF.
I want to convert an MS powerpoint (ppt) document to PDF.
我搜索了一些类似 officetools.jar
的 jar,但这需要购买.
I searched some jars like officetools.jar
, but that requires purchase.
有什么办法可以通过 itext
和 apache POI
把它转换成 doc 到 PDF?
Is there any way I can convert it through itext
and apache POI
like we do for doc to PDF?
推荐答案
我正在使用 iText 和 apache poi:
I am using iText and apache poi:
以下是进口清单-
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.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.hslf.model.Slide;
import org.apache.poi.hslf.usermodel.SlideShow;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xslf.usermodel.XSLFSlide;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
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;
方法是..
public void convertPPTToPDF(String sourcepath, String destinationPath, String fileType) throws Exception {
FileInputStream inputStream = new FileInputStream(sourcepath);
double zoom = 2;
AffineTransform at = new AffineTransform();
at.setToScale(zoom, zoom);
Document pdfDocument = new Document();
PdfWriter pdfWriter = PdfWriter.getInstance(pdfDocument, new FileOutputStream(destinationPath));
PdfPTable table = new PdfPTable(1);
pdfWriter.open();
pdfDocument.open();
Dimension pgsize = null;
Image slideImage = null;
BufferedImage img = null;
if (fileType.equalsIgnoreCase(".ppt")) {
SlideShow ppt = new SlideShow(inputStream);
pgsize = ppt.getPageSize();
Slide slide[] = ppt.getSlides();
pdfDocument.setPageSize(new Rectangle((float) pgsize.getWidth(), (float) pgsize.getHeight()));
pdfWriter.open();
pdfDocument.open();
for (int i = 0; i < slide.length; i++) {
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));
slide[i].draw(graphics);
graphics.getPaint();
slideImage = Image.getInstance(img, null);
table.addCell(new PdfPCell(slideImage, true));
}
}
if (fileType.equalsIgnoreCase(".pptx")) {
XMLSlideShow ppt = new XMLSlideShow(inputStream);
pgsize = ppt.getPageSize();
XSLFSlide slide[] = ppt.getSlides();
pdfDocument.setPageSize(new Rectangle((float) pgsize.getWidth(), (float) pgsize.getHeight()));
pdfWriter.open();
pdfDocument.open();
for (int i = 0; i < slide.length; i++) {
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));
slide[i].draw(graphics);
graphics.getPaint();
slideImage = Image.getInstance(img, null);
table.addCell(new PdfPCell(slideImage, true));
}
}
pdfDocument.add(table);
pdfDocument.close();
pdfWriter.close();
System.out.println("Powerpoint file converted to PDF successfully");
}
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