Epublib is a java library for reading/writing/manipulating epub files.
I consists of 2 parts: a core that reads/writes epub and a collection of tools.
The tools contain an epub cleanup tool, a tool to create epubs from html files, a tool to create an epub from an uncompress html file.
It also contains a swing-based epub viewer.
The core runs both on android and a standard java environment. The tools run only on a standard java environment.
This means that reading/writing epub files works on Android.
Set the author of an existing epub java -jar epublib-3.0-SNAPSHOT.one-jar.jar --in input.epub --out result.epub --author Tester,Joe
Set the cover image of an existing epub java -jar epublib-3.0-SNAPSHOT.one-jar.jar --in input.epub --out result.epub --cover-image my_cover.jpg
package nl.siegmann.epublib.examples;
import java.io.InputStream;
import java.io.FileOutputStream;
import nl.siegmann.epublib.domain.Author;
import nl.siegmann.epublib.domain.Book;
import nl.siegmann.epublib.domain.Metadata;
import nl.siegmann.epublib.domain.Resource;
import nl.siegmann.epublib.domain.TOCReference;
import nl.siegmann.epublib.epub.EpubWriter;
public class Translator {
private static InputStream getResource( String path ) {
return Translator.class.getResourceAsStream( path );
}
private static Resource getResource( String path, String href ) {
return new Resource( getResource( path ), href );
}
public static void main(String[] args) {
try {
// Create new Book
Book book = new Book();
Metadata metadata = book.getMetadata();
// Set the title
metadata.addTitle("Epublib test book 1");
// Add an Author
metadata.addAuthor(new Author("Joe", "Tester"));
// Set cover image
book.setCoverImage(
getResource("/book1/test_cover.png", "cover.png") );
// Add Chapter 1
book.addSection("Introduction",
getResource("/book1/chapter1.html", "chapter1.html") );
// Add css file
book.getResources().add(
getResource("/book1/book1.css", "book1.css") );
// Add Chapter 2
TOCReference chapter2 = book.addSection( "Second Chapter",
getResource("/book1/chapter2.html", "chapter2.html") );
// Add image used by Chapter 2
book.getResources().add(
getResource("/book1/flowers_320x240.jpg", "flowers.jpg"));
// Add Chapter2, Section 1
book.addSection(chapter2, "Chapter 2, section 1",
getResource("/book1/chapter2_1.html", "chapter2_1.html"));
// Add Chapter 3
book.addSection("Conclusion",
getResource("/book1/chapter3.html", "chapter3.html"));
// Create EpubWriter
EpubWriter epubWriter = new EpubWriter();
// Write the Book as Epub
epubWriter.write(book, new FileOutputStream("test1_book1.epub"));
} catch (Exception e) {
e.printStackTrace();
}
}
}
Add the following lines to your app
module's build.gradle
file:
repositories {
maven {
url 'https://github.com/psiegman/mvn-repo/raw/master/releases'
}
}
dependencies {
implementation('nl.siegmann.epublib:epublib-core:4.0') {
exclude group: 'org.slf4j'
exclude group: 'xmlpull'
}
implementation 'org.slf4j:slf4j-android:1.7.25'
}