Open the app, go to 'Library,' tap 'Add Book,' and select your ebook files from your device or download from our store.

KDL Reader supports Kindle formats (.mobi, .azw, .azw3), EPUB (.epub), and PDF (.pdf) files without DRM protection.

Navigate to the store tab, browse or search for free ebooks, then tap 'Download' to add them to your library.

Use the 'Send To Kindle' option within the app or connect your device via USB and select the 'Send' option to transfer books.

Yes, KDL Reader supports both PDFs and EPUBs, allowing seamless switching between formats for versatile reading.

Yes, during reading, tap and hold to highlight text or use the comment feature to add notes that can be saved and reviewed later.

You can download free ebooks directly; premium features or additional content may be available via in-app purchases, accessed through Settings > Store.

Go to 'Settings,' tap 'Account,' then select 'Subscribe' or 'Upgrade' to view available plans and follow prompts to complete payment.

Try restarting the app, re-download the ebook, or check for updates in Settings > About. Contact support if the problem persists.

Yes, tap the 'Settings' or 'Reader' icon during reading to adjust font size, background color, and other viewing options for comfort.