Steps to Edit EPUB in Java

GroupDocs.Editor for Java provides an easy and straightforward way for developers to edit the EPUB files using a few lines of code.

Create an instance of Editor class with mandatory file path or byte stream and load the EPUB file
Create & set the EbookEditOptions class instance for the EPUB file format
Call Editor.Edit() method and obtain EPUB document in HTML format that is easily editable with any WYSIWYG-editor.
Call Editor.Save() method and save edited EPUB file using EpubSaveOptions or Azw3SaveOptions class for the saving into ePub or AZW3 formats respectively

System Requirements

A basic document editing with GroupDocs.Editor for Java APIs can be done by implementing a few easy steps. Our APIs are supported on all major platforms and operating systems. Before executing the code below, please make sure that you have the following prerequisites installed on your system.

Operating Systems: Microsoft Windows, Linux, MacOS
Development Environments: NetBeans, IntelliJ IDEA, Eclipse
Frameworks: Java 7 (1.7) and above
Get the latest version of GroupDocs.Editor for Java downloaded from Maven

// Load the EPUB file into Editor
Editor editor = new Editor("source.epub");

// Create and adjust the edit options, common for all e-book formats, including EPUB
EbookEditOptions editOptions = new EbookEditOptions();

// Open input EPUB document for edit — obtain an intermediate document, that can be edited
EditableDocument beforeEdit = editor.edit(editOptions);

// Grab EPUB document content and associated resources from editable document
string content = beforeEdit.getEmbeddedHtml();

// Send the content to WYSIWYG-editor, edit it there, and send edited content back to the server-side
// This step simulates a such operation
string updatedContent = content.replace("Adventure", "Edited Adventure");

// Grab edited content and resources from WYSIWYG-editor and create a new EditableDocument instance from it
EditableDocument afterEdit = EditableDocument.fromMarkup(updatedContent, null);

// Create and adjust the save options, separate for every e-book format
EpubSaveOptions epubSaveOptions = new EpubSaveOptions();//for ePub
Azw3SaveOptions azw3SaveOptions = new Azw3SaveOptions();//for AZW3

// Save edited EPUB document to the ePub format
editor.save(afterEdit, outputPath, epubSaveOptions);

// Save edited EPUB document to the AZW3 format
editor.save(afterEdit, outputPath, azw3SaveOptions);