In today's digital age, eBooks have become increasingly popular for reading on various devices. However, not all eBooks are compatible with every device or app. That's where eBook conversion comes in. Converting eBooks allows you to make them compatible with your Apple devices, such as iPhone, iPad, or Mac, and enjoy your favorite books on the go.

Apple devices support various eBook formats, including EPUB and PDF. EPUB is the most widely used format for eBooks as it offers a reflowable layout, adjustable font sizes, and other interactive features. PDF, on the other hand, maintains the original formatting of the book but may not be as flexible for reading on smaller screens.

To convert eBooks on Apple devices, you can use dedicated eBook conversion software or online conversion services. Here are a few options:

1. Calibre (macOS): Calibre is a popular open-source eBook management tool that also offers conversion capabilities. It supports a wide range of eBook formats and allows you to convert eBooks to EPUB or other formats compatible with Apple devices. Here's how to convert an eBook using Calibre:

   1. Download and install Calibre from the official website.
   2. Launch Calibre and click on "Add books" to import the eBook you want to convert.
   3. Select the imported book and click on "Convert books" in the toolbar.
   4. Choose the output format as EPUB and customize any other settings if needed.
   5. Click on "OK" to start the conversion process.
   6. Once the conversion is complete, you can transfer the converted eBook to your Apple device using iTunes or other file transfer methods.

2. Online Conversion Services: There are several online services available that allow you to convert eBooks without the need for any software installation. One such service is "Online-Convert.com." Here's how to convert an eBook using this service:

   1. Visit "Online-Convert.com" in your web browser.
   2. Select the "eBook converter" option from the list of available converters.
   3. Choose the input format of your eBook and upload the file.
   4. Select the output format as EPUB or any other compatible format for Apple devices.
   5. Click on "Convert" to start the conversion process.
   6. Once the conversion is finished, download the converted eBook to your Apple device.