pdf转图片

1.引入jar包

<dependency>
    <groupId>org.apache.pdfbox</groupId>
    <artifactId>fontbox</artifactId>
    <version>2.0.9</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.pdfbox/pdfbox -->
<dependency>
    <groupId>org.apache.pdfbox</groupId>
    <artifactId>pdfbox</artifactId>
    <version>2.0.9</version>
</dependency>
2.编写代码测试

@Test
public void contextLoads() {
    String fileAddress="C:\\Users\\intasect\\Desktop\\测试";
    pdf2png(fileAddress,"kafka消息接口文档","jpg");

}



public static void pdf2png(String fileAddress,String filename,String type) {
    // 将pdf装图片 并且自定义图片得格式大小
    File file = new File(fileAddress+"\\"+filename+".pdf");
    try {
        PDDocument doc = PDDocument.load(file);
        PDFRenderer renderer = new PDFRenderer(doc);
        int pageCount = doc.getNumberOfPages();
        for (int i = 0; i < pageCount; i++) {
            BufferedImage image = renderer.renderImageWithDPI(i, 144); // Windows native DPI
            // BufferedImage srcImage = resize(image, 240, 240);//产生缩略图
            ImageIO.write(image, type, new File(fileAddress+"\\"+filename+"_"+(i+1)+"."+type));
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}
3.结果