Java 使用aspose.pdf将多张图片转成pdf的方法及示例代码

1、Aspose组件下载

Aspose下载地址：https://products.aspose.com/pdf/java

破解版下载地址：https://download.csdn.net/download/ahgaoyong/9615804

官方文档地址：https://docs.aspose.com/display/pdfjava/Home

官方Demo代码：https://github.com/aspose-pdf/Aspose.pdf-for-Java

2､多张图片转成pdf

1) 验证license

 /**
     * 获取license
     * 
     * @return
     */
    public static boolean getLicense() {
        boolean result = false;
        try {
            InputStream is = Test.class.getClassLoader().getResourceAsStream("\\license.xml");
            License aposeLic = new License();
            aposeLic.setLicense(is);
            result = true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }

2) 实现代码

public static void convertImageToPdf(ArrayList inputImgPaths, String outputFileName) throws Exception {// Instantiate Document Objecttry {com.aspose.pdf.Document doc = new com.aspose.pdf.Document();for (int i = 0; i < inputImgPaths.size(); i++)//{// Add a page to pages collection of documentPage page = doc.getPages().add();// Load the source image file to Stream objectjava.io.FileInputStream fs = new java.io.FileInputStream(inputImgPaths.get(i));// Set margins so image will fit, etc.page.getPageInfo().getMargin().setBottom(0);page.getPageInfo().getMargin().setTop(0);page.getPageInfo().getMargin().setLeft(0);page.getPageInfo().getMargin().setRight(0);page.setCropBox(new Rectangle(0, 0, 400, 400));// Create an image objectImage image1 = new Image();// Add the image into paragraphs collection of the sectionpage.getParagraphs().add(image1);// Set the image file streamimage1.setImageStream(fs);}doc.save(outputFileName);} finally {}}

或者

public static void convertImageToPdf(ArrayList inputImgPaths, String outputFileName) throws Exception {// Instantiate Document Objecttry {com.aspose.pdf.Document doc = new com.aspose.pdf.Document();for (int i = 0; i < inputImgPaths.size(); i++) {// Add a page to pages collection of documentPage page = doc.getPages().add();// create image instanceImage image1 = new Image();// create BufferedImage instancejava.awt.image.BufferedImage bufferedImage = ImageIO.read(new File(inputImgPaths.get(i)));ByteArrayOutputStream baos = new ByteArrayOutputStream();// write buffered Image to OutputStream instanceImageIO.write(bufferedImage, "gif", baos);baos.flush();ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());// add image to paragraphs collection of first pagepage.getParagraphs().add(image1);// set image stream as OutputStream holding Buffered imageimage1.setImageStream(bais);}doc.save(outputFileName);} finally {}}

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