Kindle Users: Is it possible to directly translate MOBI or AZW3 format ebooks?

Core Issue Diagnosis

Amazon’s Kindle formats are closed; most translation tools require users to convert files to TXT or DOCX first, which leads to the loss of all formatting and images.

Root Cause Analysis

Lossless Unpacking Technology

Shangyi AI comes with a built-in ebook format conversion engine. After uploading MOBI or AZW3 files, the backend automatically unpacks them into intermediate formats (HTML/OPF), extracting text and image resources without requiring the user to operate Calibre manually.

Vertical text support (vertical writing)

For Japanese or Traditional Chinese ebooks with vertical text, after AI translation into English (horizontal layout), the system will automatically update the `writing-mode` property in the CSS stylesheet and restructure the page layout for optimal horizontal reading.

Native format export

After translation, the system will automatically repackage the translated content into a MOBI or AZW3 file. After downloading, users can transfer the file to their Kindle via USB and start reading right away—with the original cover and chapter navigation features preserved.

Final Solution Summary

Eliminate format barriers and transform your Kindle into your personal translation library.