图片转pdf、图片转ofd、读取图片并用java绘制

世间所有相遇都是久别重逢

已于 2024-07-29 09:29:55 修改

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文章标签： pdf java python

于 2024-07-29 09:27:16 首次发布

本文链接：https://blog.youkuaiyun.com/weixin_43778043/article/details/140762361

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-- 首先引入依赖
<dependency>
    <groupId>com.itextpdf</groupId>
    <artifactId>itextpdf</artifactId>
    <version>5.5.13</version>
</dependency>
<dependency>
    <groupId>org.ofdrw</groupId>
    <artifactId>ofdrw-full</artifactId>
    <version>1.17.0</version>
</dependency>

/**
     * 将图片转换为OFD文件
     *
     * @param file 上传的图片文件
     * @param url  真实图片路径
     * @return
     * @throws IOException IO异常
     */
    public static MultipartFile generateOfdFile(MultipartFile file, String url) throws IOException {
   
        System.out.println("ofd创建前图片路径---："+url);
        String ofdFilePath = url.substring(0, url.lastIndexOf(".png")) + ".ofd";
        Path OfdPath = Paths.get(ofdFilePath).toAbsolutePath();
        try (OFDDoc ofdDoc = new OFDDoc(OfdPath)) {
   
            PageLayout pageLayout = ofdDoc.getPageLayout();
            VirtualPage vPage = new VirtualPage(pageLayout);
            Image image = Image.getInstance(file.getBytes());
            float height = image.getHeight();
            float width = image.getWidth();

            Path imgPath = Paths.get(url);
            Img img;

            if (height / width > pageLayout.getHeight() / pageLayout.getWidth()) {
   
                //上下顶头
                img = new Img((pageLayout.getHeight() - 20) * width / height, pageLayout.getHeight(<