“Simple text translation can compromise the e-book’s table of contents (TOC) and specialized typesetting formats (such as Japanese vertical text), causing display issues on reading devices.”

Root Cause Analysis

Perfect Reconstruction of Encapsulated Structure

Decompressing and rebuilding the EPUB’s OEBPS structure ensures that the translated e-book maintains a functional table of contents, accurate chapter divisions, and metadata (cover, author information).

Literary Quality and Typesetting Compatibility

Harness the long-text capabilities of large language models to maintain narrative coherence in novels. Simultaneously supports the conversion of complex layout styles, such as automatically transforming Japanese vertical books into horizontal English text or retaining the original CSS styles.

Final Solution Summary

This is not merely text conversion, but a comprehensive delivery of book encapsulation format and an immersive reading experience.