java 实现 ppt或pptx文件转换PDF文件 |
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java 实现 ppt或pptx文件转换PDF文件
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前提：
由于ppt和pptx文件格式不同，ppt是基于二进制的文件，而pptx是基于xml文件， 也是就pptx是2007年后出现的新的ppt版本，对这两种文件处理方式转换PDF其实都差不多，只是要注意接收文件ppt或pptx以及获取两种文件内容 需要的类处理，即使用POI 里面的XMLSlide 和 HSLFSlide 进行分别处理。 关于中文乱码问题已修复 maven依赖都使用poi 4.1.2版本： org.apache.poi poi 4.1.2 org.apache.poi poi-ooxml 4.1.2 org.apache.poi poi-scratchpad 4.1.2 com.itextpdf itextpdf 5.4.3 com.itextpdf itext-asian 5.2.0 cn.hutool hutool-all 5.6.0 ppt/pptx转换pdf： import cn.hutool.core.util.StrUtil; import java.awt.*; import java.awt.image.BufferedImage; import org.apache.poi.xslf.usermodel.*; import org.apache.poi.hslf.usermodel.*; import com.itextpdf.text.Document; import com.itextpdf.text.pdf.*; import com.itextpdf.text.Image; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.util.List; /** * 类名称：PdfConvertUtil * 类描述：转为为PDF工具类 */ public final class PdfConverUtil { /** * pptToPdf * @param pptPath PPT文件路径 * @param pdfDir 生成的PDF文件路径 * @return */ public static boolean pptToPdf(String pptPath, String pdfDir) { if (StrUtil.isEmpty(pptPath)) { throw new RuntimeException("word文档路径不能为空"); } if (StrUtil.isEmpty(pdfDir)) { throw new RuntimeException("pdf目录不能为空"); } String pdfPath = pdfDir + StrUtil.sub(pptPath, pptPath.lastIndexOf(StrUtil.BACKSLASH), pptPath.lastIndexOf(StrUtil.DOT)) + StrUtil.DOT + "pdf"; Document document = null; HSLFSlideShow hslfSlideShow = null; FileOutputStream fileOutputStream = null; PdfWriter pdfWriter = null; try { hslfSlideShow = new HSLFSlideShow(new FileInputStream(pptPath)); // 获取ppt文件页面 Dimension dimension = hslfSlideShow.getPageSize(); fileOutputStream = new FileOutputStream(pdfPath); document = new Document(); // pdfWriter实例 pdfWriter = PdfWriter.getInstance(document, fileOutputStream); document.open(); PdfPTable pdfPTable = new PdfPTable(1); List hslfSlideList = hslfSlideShow.getSlides(); for (int i=0; i if (shape instanceof HSLFTextShape) { HSLFTextShape textShape = (HSLFTextShape) shape; for (HSLFTextParagraph textParagraph : textShape.getTextParagraphs()) { for (HSLFTextRun textRun : textParagraph.getTextRuns()) { textRun.setFontFamily("宋体"); } } } } BufferedImage bufferedImage = new BufferedImage((int)dimension.getWidth(), (int)dimension.getHeight(), BufferedImage.TYPE_INT_RGB); Graphics2D graphics2d = bufferedImage.createGraphics(); graphics2d.setPaint(Color.white); graphics2d.setFont(new java.awt.Font("宋体", java.awt.Font.PLAIN, 12)); hslfSlide.draw(graphics2d); graphics2d.dispose(); Image image = Image.getInstance(bufferedImage, null); image.scalePercent(50f); // 写入单元格 pdfPTable.addCell(new PdfPCell(image, true)); document.add(image); } } catch (Exception e) { e.printStackTrace(); return false; } finally { try { if (document != null) { document.close(); } if (fileOutputStream != null) { fileOutputStream.close(); } if (pdfWriter != null) { pdfWriter.close(); } } catch (IOException e) { e.printStackTrace(); } } return true; } /** * * @Title: pptxToPdf * @param pptPath PPT文件路径 * @param pdfDir 生成的PDF文件路径 */ public static boolean pptxToPdf(String pptPath, String pdfDir) { if (StrUtil.isEmpty(pptPath)) { throw new RuntimeException("word文档路径不能为空"); } if (StrUtil.isEmpty(pdfDir)) { throw new RuntimeException("pdf目录不能为空"); } String pdfPath = pdfDir + StrUtil.sub(pptPath, pptPath.lastIndexOf(StrUtil.BACKSLASH), pptPath.lastIndexOf(StrUtil.DOT)) + StrUtil.DOT + "pdf"; Document document = null; XMLSlideShow slideShow = null; FileOutputStream fileOutputStream = null; PdfWriter pdfWriter = null; try { slideShow = new XMLSlideShow(new FileInputStream(pptPath)); Dimension dimension = slideShow.getPageSize(); fileOutputStream = new FileOutputStream(pdfPath); document = new Document(); pdfWriter = PdfWriter.getInstance(document, fileOutputStream); document.open(); PdfPTable pdfPTable = new PdfPTable(1); List slideList = slideShow.getSlides(); for (int i = 0, row = slideList.size(); i if (shape instanceof XSLFTextShape) { XSLFTextShape textShape = (XSLFTextShape) shape; for (XSLFTextParagraph textParagraph : textShape.getTextParagraphs()) { for (XSLFTextRun textRun : textParagraph.getTextRuns()) { textRun.setFontFamily("宋体"); } } } } BufferedImage bufferedImage = new BufferedImage((int)dimension.getWidth(), (int)dimension.getHeight(), BufferedImage.TYPE_INT_RGB); Graphics2D graphics2d = bufferedImage.createGraphics(); graphics2d.setPaint(Color.white); graphics2d.setFont(new java.awt.Font("宋体", java.awt.Font.PLAIN, 12)); slide.draw(graphics2d); graphics2d.dispose(); Image image = Image.getInstance(bufferedImage, null); image.scalePercent(50f); // 写入单元格 pdfPTable.addCell(new PdfPCell(image, true)); document.add(image); } } catch (Exception e) { e.printStackTrace(); return false; } finally { try { if (document != null) { document.close(); } if (fileOutputStream != null) { fileOutputStream.close(); } if (pdfWriter != null) { pdfWriter.close(); } } catch (IOException e) { e.printStackTrace(); } } return true; } } 测试： public static void main(String[] args) { boolean successful = false; // ppt to pdf successful = PdfConvertUtil.pptToPdf("D:\\360_js\\abc1.ppt", "D:\\360_js") // pptx to pdf // successful = PdfConvertUtil.pptxToPdf("D:\\360_js\\测321pt.pptx", "D:\\360_js"); System.out.println("转换" + (successful ? "成功" : "失败")); }
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