Редактирайте EPUB в Java

// 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);