Convert compression formats Leave feedback

import com.groupdocs.conversion.Converter;
import com.groupdocs.conversion.contracts.ConvertOptionsProvider;
import com.groupdocs.conversion.contracts.SaveDocumentStreamForFileType;
import com.groupdocs.conversion.options.convert.PdfConvertOptions;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;

String outputFolder = "converted";
new File(outputFolder).mkdirs();
final int[] index = {0};

// Create an output stream for each converted archive item
SaveDocumentStreamForFileType convertedStreamProvider = (fileType) -> {
    File outputFile = new File(outputFolder, String.format("converted-%d.pdf", index[0]));
    index[0]++;
    try {
        return new FileOutputStream(outputFile);
    } catch (FileNotFoundException e) {
        throw new RuntimeException(e);
    }
};

// Convert each archive item to PDF
ConvertOptionsProvider convertOptionsProvider = (sourceFileName, fileType) -> new PdfConvertOptions();

// Load the source ZIP file
try (Converter converter = new Converter("sample.zip")) {
    converter.convert(convertedStreamProvider, convertOptionsProvider);
}