EPUB has become the de‑facto standard for distributing digital books and publications, while Microsoft Word remains the preferred format for editing, reviewing, and collaboration. Converting EPUB to Word documents (DOC or DOCX) allows teams to repurpose eBook content, apply rich formatting, and collaborate efficiently using familiar word‑processing tools.

In this article, you’ll learn how to perform EPUB to Word conversion using C# .NET REST API, enabling seamless transformation of eBook content into fully editable Word files without installing desktop software.

REST API for EPUB to Word Conversion

The Aspose.Words Cloud SDK for .NET offers a powerful and scalable solution for converting EPUB files into Word documents. Beyond simple format conversion, the API provides extensive document‑processing capabilities, including content manipulation, formatting control, document comparison, and text extraction.

Because the API is cloud‑based, there is no dependency on Microsoft Word, making it ideal for cross‑platform and server‑side applications.

Key Benefits

  • Convert EPUB to DOC or DOCX with high accuracy.
  • Preserve text structure and formatting.
  • Cloud‑based processing with REST architecture.
  • Secure authentication using OAuth 2.0.
  • Easy integration with C# .NET applications.

To get started, install the SDK by searching for Aspose.Words-Cloud in the NuGet Package Manager. Then, obtain your Client ID and Client Secret from the Aspose Cloud Dashboard. New users can register for a free account and follow the quick‑start guide to begin immediately.

Convert EPUB to DOCX using C#

Follow the steps below to convert an EPUB file into a Word document programmatically using C#.

Step 1: Initialize the Words API

WordsApi wordsApi = new WordsApi(new Configuration
{
    ClientId = clientID,
    ClientSecret = clientSecret
});

Step 2: Load the EPUB File

var sourceFile = System.IO.File.OpenRead(inputFile);

Step 3: Convert EPUB to Word (DOCX)

var response = wordsApi.ConvertDocument(
    new ConvertDocumentRequest
    {
        Document = sourceFile,
        Format = "DOCX",
        OutPath = resultant
    });

The API processes the EPUB file and returns a fully editable Word document.

EPUB to Word Conversion using cURL

If you prefer a command‑line approach, the Aspose.Words Cloud REST API also supports EPUB to Word conversion using cURL commands. This approach provides simplicity and ease of use, making it accessible for users with varying levels of technical expertise and looking for command line or batch processing.

Generate Access Token

curl -v "https://api.aspose.cloud/connect/token" \
 -X POST \
 -d "grant_type=client_credentials&client_id=XXXXXX-XXXXX-XXXX&client_secret=XXXXXXXXXX" \
 -H "Content-Type: application/x-www-form-urlencoded" \
 -H "Accept: application/json"

Convert EPUB to DOCX

curl -v "https://api.aspose.cloud/v4.0/words/convert?format=DOCX"  \
-X PUT  \
-H "Authorization: Bearer {accessToken}"  \
-H "Content-Type: multipart/form-data"  \
-F "Document=@input.epub"

Conclusion

Converting EPUB files to Word documents using C# .NET REST API simplifies content reuse and editing workflows. Whether you choose the Aspose.Words Cloud SDK for deep integration or cURL commands for lightweight automation, both options deliver reliable EPUB to DOCX conversion with excellent fidelity.

Free EPUB to DOC Converter App

You may experience the EPUB to DOCX conversion without writing a single line of code. So, try using our free online free EPUB to Word document conversion App.

epub to word doc

A preview of JPG to Word converter app.

❓ Frequently Asked Questions (FAQs)

  1. What is EPUB to Word document conversion?
    EPUB to Word conversion is the process of transforming an EPUB eBook file into an editable Word document (DOC or DOCX).
  2. Why convert EPUB files to Word format?
    Converting EPUB to Word is useful when you need to: Edit or revise eBook content, Reuse EPUB text in reports or documents, etc.
  3. How can I convert EPUB to DOCX using C# .NET?
    You can convert EPUB to DOCX using Aspose.Words Cloud SDK for .NET.
  4. Does EPUB to Word conversion preserve formatting?
    Yes. The API preserves text structure, headings, paragraphs, and basic formatting.
  5. Is Microsoft Word required for EPUB to DOCX conversion?
    No. The conversion is handled entirely in the cloud using REST APIs. Microsoft Word or any desktop software is not required.