Frequently asked questions

• What is an eBook format?

  

  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.

• Can I convert my books to eBooks?

  

  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.

• How do I change an eBook into a PDF?

  

  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.

• What is the best eBook format?

  

  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.

• Does your tool work on any device? 

  

  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.

• Is this website safe to use? 

  

  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.

• What if I need help or support?

  

  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 [email protected]. We're happy to help you get the most out of the tool.

• How do I cancel?

  

  You can cancel anytime from your account settings or by contacting our support team. Your access stays active until the end of the current billing period.