How AI Translation Works
We preserve 100% of the original formatting of your books and subtitles. Fast, secure, and professional process.
Upload your file
Drag your EPUB, SRT, DOCX, or TXT file into our widget. Transmission is completely secure and encrypted.
Structure analysis
The AI maps the document structure to protect fonts, chapters, styles, and subtitle timestamps.
Literary translation
Advanced language models translate text smoothly and naturally, respecting idioms and the original tone.
Formatted download
Review the free preview. Only pay when downloading. The file is immediately generated in its native format.
🛡️ Your Formatting Is Safe
Our advanced technology analyzes the file structure before translating. This means footnotes, chapter styles, internal EPUB links, and exact SRT subtitle timings remain untouched. Only the language changes.
Frequently Asked Questions
Will my EPUB book layout get messed up?
No. The translator only processes the text nodes within the internal XHTML files of the EPUB, leaving the CSS stylesheet, images, and navigation structure (NCX/OPF) completely intact.
Will SRT subtitles stay perfectly in sync?
Absolutely. The algorithm strictly isolates the timestamps (e.g., 00:01:20 --> 00:01:24) and subtitle block numbers, translating only the dialogue to ensure no lag or timing shifts.
How is the privacy of my documents handled?
Privacy is our top priority. Uploaded files are temporarily stored using SSL encryption and are automatically and permanently deleted from our servers after 7 days.
Are there any hidden costs or monthly subscriptions?
No, there are no subscriptions. BookTranslatorAI is a pay-as-you-go service. You translate a book, pay a flat fee starting at €2.90, and download it. You get a free preview before paying.
Free trial, no commitment