itextpdf将图片转成pdf文件及pdfbox将多张pdf合成一张

来源：互联网发布：mysql修改字段值编辑：程序博客网时间：2024/04/30 10:08

记录只为自己以后方便查找。

转载参考 pdf合并：http://www.cnblogs.com/MoreThinking/archive/2017/07/27/7245433.html

图片转pdf : http://blog.csdn.net/haunghui6579/article/details/8900987

itext生成pdf:http://www.cnblogs.com/dengjiali/articles/2521301.html

itextpdf将图片转成pdf:

引用maven依赖：

<!-- https://mvnrepository.com/artifact/com.itextpdf/itextpdf --><dependency>    <groupId>com.itextpdf</groupId>    <artifactId>itextpdf</artifactId>    <version>5.5.12</version></dependency>

  public String index3()    {    try {              String imagePath = "D:/5.jpg";              String pdfPath = "D:/test.pdf";              BufferedImage img = ImageIO.read(new File(imagePath));              FileOutputStream fos = new FileOutputStream(pdfPath);              Document doc = new Document(null, 0, 0, 0, 0);              doc.setPageSize(new Rectangle(img.getWidth(), img.getHeight()));              Image image = Image.getInstance(imagePath);              PdfWriter.getInstance(doc, fos);              doc.open();              doc.add(image);              doc.close();          } catch (IOException e) {              e.printStackTrace();          } catch (BadElementException e) {              e.printStackTrace();          } catch (DocumentException e) {              e.printStackTrace();          }      return "index3";    }


pdfbox将多张pdf合成一张
引用maven依赖
  <dependency>              <groupId>org.apache.pdfbox</groupId>              <artifactId>pdfbox</artifactId>              <version>2.0.5</version>          </dependency> 
 public String index4() throws Exception    {      //pdf合并工具类        PDFMergerUtility mergePdf = new PDFMergerUtility();          String folder = "D:/testfile";         String destinationFileName = "mergedTest.pdf";         String[] filesInFolder = getFiles(folder);         for(int i = 0; i < filesInFolder.length; i++){            //循环添加要合并的pdf存放的路径        //File.separatorChar 与系统有关的默认名称分隔符。此字段被初始化为包含系统属性 file.separator 值的第一个字符。在 UNIX 系统上，此字段的值为 '/'；在 Microsoft Windows 系统上，它为 '\'。            mergePdf.addSource(folder + File.separatorChar + filesInFolder[i]);         }         //设置合并生成pdf文件名称        mergePdf.setDestinationFileName(folder + File.separator + destinationFileName);         //合并pdf        mergePdf.mergeDocuments();     return "index4";    }    private String[] getFiles(String folder) throws IOException { //获取文件夹下的全部文件        File _folder = new File(folder);         String[] filesInFolder;                if(_folder.isDirectory()){               filesInFolder = _folder.list();               return filesInFolder;          } else {               throw new IOException("Path is not a directory");          }       }

阅读全文

0 0