pptx转pdf工具类

引入依赖

      <dependency><groupId>org.apache.poi</groupId><artifactId>poi</artifactId><version>5.0.0</version></dependency><dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId><version>5.0.0</version></dependency><dependency><groupId>org.apache.pdfbox</groupId><artifactId>pdfbox</artifactId><version>3.0.0-RC1</version></dependency>

工具类

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
import org.apache.poi.xslf.usermodel.*;import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.Files;
public class FileConvertUtil {public static void convertPPTXtoPDF(String pptxFilePath, String pdfFilePath) {try (FileInputStream inputStream = new FileInputStream(pptxFilePath);FileOutputStream outputStream = new FileOutputStream(pdfFilePath)) {XMLSlideShow pptx = new XMLSlideShow(inputStream);PDDocument pdfDoc = new PDDocument();File imageTempDir = Files.createTempDirectory("pptx_to_pdf").toFile();int pageNum = 0;for (XSLFSlide slide : pptx.getSlides()) {for (XSLFShape shape : slide.getShapes()) {if (shape instanceof XSLFTextShape) {XSLFTextShape textShape = (XSLFTextShape) shape;for (XSLFTextParagraph textParagraph : textShape.getTextParagraphs()) {for (XSLFTextRun textRun : textParagraph.getTextRuns()) {textRun.setFontFamily("宋体");}}}}Dimension pageSize = pptx.getPageSize();BufferedImage bufferedImage = new BufferedImage(pageSize.width, pageSize.height, BufferedImage.TYPE_INT_RGB);Graphics2D graphics = bufferedImage.createGraphics();graphics.setPaint(Color.white);graphics.fill(new Rectangle(pageSize));slide.draw(graphics);File imageFile = new File(imageTempDir, "slide_" + pageNum + ".png");ImageIO.write(bufferedImage, "png", imageFile);PDPage pdfPage = new PDPage(new org.apache.pdfbox.pdmodel.common.PDRectangle(pageSize.width, pageSize.height));pdfDoc.addPage(pdfPage);try (PDPageContentStream contentStream = new PDPageContentStream(pdfDoc, pdfPage)) {PDImageXObject pdfImage = PDImageXObject.createFromByteArray(pdfDoc, Files.readAllBytes(imageFile.toPath()), "slide_" + pageNum);contentStream.drawImage(pdfImage, 0, 0);}pageNum++;}pdfDoc.save(outputStream);pdfDoc.close();// Delete temporary image filesfor (File imageFile : imageTempDir.listFiles()) {imageFile.delete();}imageTempDir.delete();System.out.println("PPTX to PDF conversion completed successfully.");} catch (IOException e) {e.printStackTrace();}}
}