Create Encrypted and Unencrypted ZIP Archives in Java with Cloudmersive API

ZIP files are ubiquitous for compressing and sharing data, and the Cloudmersive API lets Java developers create both unencrypted and encrypted ZIP archives programmatically.

First, add the Cloudmersive Maven repository and dependency to your pom.xml:

<repositories>
    <repository>
        <id>jitpack.io</id>
        <url>https://jitpack.io</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>com.github.Cloudmersive</groupId>
        <artifactId>Cloudmersive.APIClient.Java</artifactId>
        <version>v3.90</version>
    </dependency>
</dependencies>

Configure the API client with your key (obtain a free key from Cloudmersive):

ApiClient defaultClient = Configuration.getDefaultApiClient();
ApiKeyAuth Apikey = (ApiKeyAuth) defaultClient.getAuthentication("Apikey");
Apikey.setApiKey("YOUR API KEY");

Example 1 creates an unencrypted ZIP containing up to ten files:

ZipArchiveApi apiInstance = new ZipArchiveApi();
File inputFile1 = new File("/path/to/inputfile");
// ... define inputFile2 … inputFile10 similarly
try {
    byte[] result = apiInstance.zipArchiveZipCreate(
        inputFile1, inputFile2, inputFile3, inputFile4, inputFile5,
        inputFile6, inputFile7, inputFile8, inputFile9, inputFile10);
    System.out.println(result);
} catch (ApiException e) {
    System.err.println("Exception when calling ZipArchiveApi#zipArchiveZipCreate");
    e.printStackTrace();
}

Example 2 adds password protection and lets you choose an encryption algorithm (AES‑256 recommended):

ZipArchiveApi apiInstance = new ZipArchiveApi();
String password = "password_example";
String encryptionAlgorithm = "encryptionAlgorithm_example";
File inputFile1 = new File("/path/to/inputfile");
// ... define inputFile2 … inputFile10 similarly
try {
    byte[] result = apiInstance.zipArchiveZipCreateEncrypted(
        password, inputFile1, encryptionAlgorithm,
        inputFile2, inputFile3, inputFile4, inputFile5,
        inputFile6, inputFile7, inputFile8, inputFile9, inputFile10);
    System.out.println(result);
} catch (ApiException e) {
    System.err.println("Exception when calling ZipArchiveApi#zipArchiveZipCreateEncrypted");
    e.printStackTrace();
}

Use a strong password and keep it secure.

Encryption algorithm can be AES‑256 (recommended), AES‑128, or PK‑Zip (legacy, weak).

Run the code to obtain the desired ZIP file and share it easily.

Feel free to try it and leave comments or questions.