java将图片转化为pdf并输出

导入依赖

    org.apache.pdfbox    pdfbox    2.0.19

import org.apache.pdfbox.pdmodel.PDDocument;import org.apache.pdfbox.pdmodel.PDPage;import org.apache.pdfbox.pdmodel.PDPageContentStream;import org.apache.pdfbox.pdmodel.common.PDRectangle;import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;

在桌面准备一张图片a.png,定位并转化为multipartFile

@Testpublic void testPdf() throws Exception{    boolean is = false;    File file = new File("C:\\Users\\scz\\Desktop\\a.png");    FileInputStream fileInputStream = new FileInputStream(file);    MultipartFile multipartFile = new MockMultipartFile("copy"+file.getName(),file.getName(), ContentType.APPLICATION_OCTET_STREAM.toString(),fileInputStream);    try {        PDDocument document = new PDDocument();       //这里是设置pdf的大小,大小固定,所有不推荐,下面是根据图片大小动态生成pdf大小        String filename = multipartFile.getOriginalFilename();        String fileSuffix = filename.substring(filename.lastIndexOf(".") + 1);        Iterator readers = ImageIO.getImageReadersByFORMatName(fileSuffix);        ImageReader reader = (ImageReader) readers.next();        ImageInputStream input = ImageIO.createImageInputStream(multipartFile.getInputStream());        reader.setInput(input, true);        int width = reader.getWidth(0)+300;        int height = reader.getHeight(0)+500;        PDPage pdPage = new PDPage(new PDRectangle(width, height));//根据图片大小动态生成pdf大小        document.addPage(pdPage);        PDImageXObject pdImageXObject = PDImageXObject.createFromByteArray(document, multipartFile.getBytes(), "构建图片错误");        PDPageContentStream contentStream = new PDPageContentStream(document, pdPage);        //写入图片        contentStream.drawImage(pdImageXObject, 0, 0);        contentStream.close();        document.save("C:\\Users\\scz\\Desktop\\1.pdf");//pdf输出        document.close();        is = true;    } catch (Exception e) {        is = false;    }    System.out.println(is);}

最后会在桌面输出一个1.pdf

注意:桌面的路径要改成自己的

来源地址：https://blog.csdn.net/leese233/article/details/130942784