How to Use
- Click "Select EPUB File" or drag and drop your eBook into the converter area.
- Wait for the browser to extract and format the contents locally (please do not close the tab during this time).
- (Optional) Disconnect your Wi-Fi to verify the privacy guarantee!
- Once completed, click "Download PDF" to save the converted document.
Core Features
- 100% Privacy-First: Everything happens locally. No files are uploaded to any server, making it perfectly safe for your personal eBook collection.
- No File Size Limits: Because there is no cloud server involved, you bypass the common 50MB or 100MB constraints. Large books process immediately.
- Fast & Offline-Capable: No long queues or upload wait times. Once the page is loaded, you can even convert files while disconnected from the internet.
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Calculation Logic
This tool uses modern JavaScript (such as jszip and jspdf) running locally in your browser. It unzips the EPUB file, extracts the text contents, and renders them into a standard PDF with basic text wrapping and pagination.
Because your data never leaves your device, your files remain completely private. Note that to maintain high processing speeds and broad compatibility, highly complex eBook layouts and custom CSS might be simplified in the output PDF.
FAQ
Are my eBooks saved anywhere?
No. The conversion happens entirely locally on your device. We do not receive, store, or analyze your files.
Does it support protected (DRM) EPUBs?
No. To respect copyright protections, this tool cannot and will not convert eBooks protected by Digital Rights Management (DRM). It only works with standard, unencrypted EPUBs.
Is there a file size limit?
There are no hard platform limits. However, since it relies on your browser's memory, extremely large files might process slowly or fail if your device runs out of memory.
Will the formatting look exactly like the original?
We extract the core text and basic structure. To ensure client-side stability, complex overlapping CSS styles or unique book formatting might be simplified into a clean, highly readable text flow.