Compress EPUB in Java SDK

Reduce EPUB size using Java

Using the REST API in Java, developers can compress EPUB programmatically. With the given solution, the output will be a high quality file after compression.

View code snippet

Compress EPUB in Java

We currently do not accept EPUB files as input. But we can produce EPUB files as an output. We look forward to full EPUB support in the near future.

Using our powerful Java API, developers can compress EPUB documents to optimize content and output file size. Reducing EPUB size occurs by cleaning up unused data and resources. You can also compress images inside EPUB to make the output file size even smaller.

The result of content optimization and compression can be saved in the original EPUB or any available save format – DOCX, DOC, RTF, HTML and many others. For example, compress EPUB and save the output as Word.

Reduce EPUB file size in Java

As mentioned, our Java SDK allows you to programmatically reduce EPUB size. And now you can try our powerful functionality and evaluate how to compress EPUB in Java with the following example:

Upload a file you want to optimize/compress
Run code
Select the target format from the list
import com.aspose.words.cloud.*;

ApiClient apiClient = new ApiClient("####-####-####-####-####", "##################", null);
WordsApi wordsApi = new WordsApi(apiClient);

byte[] requestDocument = Files.readAllBytes(Paths.get("Input.docx").toAbsolutePath());
CompressOptions requestCompressOptions = new CompressOptions();
requestCompressOptions.setImagesQuality(75);
requestCompressOptions.setImagesReduceSizeFactor(1);

CompressDocumentOnlineRequest compressDocumentRequest = new CompressDocumentOnlineRequest(
   requestDocument, requestCompressOptions, null, null, null, null);
CompressDocumentOnline compressDocument =
   wordsApi.compressDocumentOnline(compressDocumentRequest);

ConvertDocumentRequest convertDocument = new ConvertDocumentRequest(
   compressDocument.getDocument().iterator().next(), "epub", null, null, null, null);
wordsApi.convertDocument(convertDocument);
Run code
  
Copy Java code to the clipboard

How to compress DOCX Java REST API

  1. Install Aspose.Words Cloud for Java
  2. Add a library reference (import the library) to your Java project
  3. Configure API using your app keys
  4. Load the source DOCX to compress
  5. Compress DOCX, clean unused information
  6. Select the output file format
  7. Get the result of DOCX compression as a separate file

Java library to use EPUB compression

Install 'Aspose.Words Cloud SDK for Java' using Maven build automation tool.

Add this dependency to your project's POM: aspose-cloud artifact.aspose-cloud-releases http://artifact.aspose.cloud/repo com.aspose aspose-words-cloud 22.4.0

As an alternative, you can clone Aspose.Words Cloud SDK for Java source code from GitHub and use it in your project. Please follow these Instructions to quickly get the necessary security credentials and access our REST API.

System Requirements

Refer to the Repository Documentation to see the details.

Other supported file formats

You can perform document compression for other file formats:

5%

Subscribe to Aspose Product Updates

Get monthly newsletters and offers directly delivered to your mailbox.

© Aspose Pty Ltd 2001-2025. All Rights Reserved.