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Size up to 100 MB
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Click the + button or drag & drop your PDF into the upload area; 
Wait a few seconds while we handle the eBook conversion; 
Download your newly converted eBook to your device and start reading. 
As our team grows, so does our toolset. Meet the eBook converter — one of our newest additions. Whether you're preparing a manuscript for Kindle, converting documents for your e-reader, or organizing a personal library, this tool makes the process effortless. It transforms PDFs, DOCX, and TXT files into formats like EPUB, MOBI, and AZW while preserving your original formatting. No technical skills required! Just upload, convert, and start reading. It's another way PDF Guru simplifies your document workflow and helps you enjoy your reading on any device.
eBook formats are file types designed specifically for digital reading. EPUB is the most universal — it works on nearly every e-reader and reading app, including newer Kindle devices. MOBI was long the standard for Kindle, though Amazon phased out support for adding new MOBI files in late 2023. AZW is Amazon's proprietary format for books purchased through the Kindle Store.
Our eBook format converter supports all of these, plus formats such as DOCX and TXT, so you can easily move between whatever your project requires.
Sure! Our book converter lets you switch between EPUB, MOBI, AZW, and PDF with ease. You can also upload DOCX and TXT files if you need to turn them into eBook-friendly formats.
Either way, you get a high-quality file that works smoothly on popular reading devices.
With our online tool, it only takes a moment:
1. Scroll to the top of this page and upload your file.
2. Choose your target format from the list.
3. Wait a few seconds while we handle the conversion.
4. Download your new file to any device.
All your processed files are also stored in your personal account, so you can access them anytime.
It really depends on your specific needs:
- EPUB is the most versatile. It works on nearly all devices and apps, including Apple Books, Kobo, Google Play Books, and newer Kindles.
- MOBI was the standard for Kindle, but Amazon stopped accepting new MOBI files for Send to Kindle in late 2023.
- AZW is the format you get when you buy from the Kindle Store, so it's ideal if you're fully within Amazon's ecosystem.
Our converter also works with:
- PDF works best when you need to keep exact page layouts or plan to print.
- DOCX files are useful when you want to edit content in Word before converting to an ebook format.
- TXT is great for simple, text-heavy files without complex formatting.
Yes! Our eBook converter is fully browser-based, so it works on any device with an internet connection — whether you're using a phone, tablet, laptop, or desktop. There's no software to install, and the interface adjusts to your screen size automatically.
Yes, PDF Guru uses encryption and secure servers to protect your files during upload and conversion. Our platform is also verified by Google Safe Browsing, meaning it meets strict security standards and poses no risk to your device or data.
We're here for you! If you run into any issues or have questions about using the eBook converter, reach out to our support team at support@pdfguru.com. We're happy to help you get the most out of the tool.
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