Epublys

EPUB and PDF toolkit for merging, splitting, compressing, converting, editing metadata, and validating ebook files.

Epublys provides a complete suite of tools for working with EPUB and PDF ebook files. It supports merging multiple EPUBs into a single book, splitting by chapters, compressing to reduce file size, converting between EPUB and PDF formats, editing metadata such as title, author, and cover image, and validating EPUB 2 and EPUB 3 files for compatibility. All processing runs on Cloudflare Workers with files handled in memory and never stored on disk.