<dependency>
    <groupId>com.liumapp.convert.img</groupId>
    <artifactId>convert-pdf-to-img</artifactId>
    <version>v1.1.0</version>
</dependency>

private String dataPath = "/usr/local/tomcat/project/convert-pdf-to-img/data/";

@Test
public void convertSinglePage () throws Exception {
    SinglePageConverter singlePageConverter = new SinglePageConverter();
    singlePageConverter.setSourcePdfPath(dataPath + "/pdf/test.pdf");
    singlePageConverter.setOutputPath(dataPath + "/pic/first/");
    singlePageConverter.setPageNumber(0);// 0 is the first page
    boolean result = singlePageConverter.convert();
    Assert.assertEquals(true, result);
    System.out.println("savename is : " + singlePageConverter.getSaveName());
    Assert.assertEquals(true, FileTool.isFileExists(dataPath + "/pic/first/" + singlePageConverter.getSaveName()));
}

@Test
public void convertAllPage () throws Exception {
    AllPageConverter allPageConverter = new AllPageConverter();
    allPageConverter.setSourcePdfPath(dataPath + "/pdf/test.pdf");
    allPageConverter.setOutputPath(dataPath + "/pic/all/");
    boolean result = allPageConverter.convert();
    Assert.assertEquals(true, result);
    LinkedList<String> names = allPageConverter.getSavenames();
    System.out.println("savename is : ");
    for (int i = 0; i < names.size(); i++) {
        System.out.println(names.get(i));
        Assert.assertEquals(true, FileTool.isFileExists(dataPath + "/pic/all/" + names.get(i)));
    }
}