Using Java to convert XLSX to JPG

// Add this dependency to your pom.xml:

<dependency>
    <groupId>com.zamzar</groupId>
    <artifactId>zamzar-java</artifactId>
    <version>1.0.8</version>
    <scope>compile</scope>
</dependency>

import com.zamzar.api.ZamzarClient;
import com.zamzar.api.invoker.ApiException;

import java.io.File;

public class GettingStarted {
    public static void main(String[] args) throws ApiException {
        // Signup for a Zamzar API Account or retrieve your existing API Key from https://developers.zamzar.com
        ZamzarClient zamzar = new ZamzarClient("{{ $key ?? 'YOUR_API_KEY_GOES_HERE' }}");

        // Converts /tmp/example.{{ $source }} to /tmp/example.{{ $target }}
        zamzar
            .convert(new File("/tmp/example.{{ $source }}"), "{{ $target }}")
            .store(new File("/tmp/"))
            .deleteAllFiles();
    }
}