Step 3) Open up the ADE application on your computer, and connect your Kobo using the USB cable that came with your eReader.
Step 4) If you are in "reading view", click on the button in the top-left corner to switch to "Library View".
Step 5) Select "Library" -> "Add item to library" from the top left.
Step 6) Select the .epub or .pdf file that you wish to add to your e-reader, and click "Open".
Step 7) Drag the icon of your newly added book from your library to the icon on the left that reads "KOBOeReader" or "Nook". You should see a progress bar come up as the file is being copied. When the process is complete, close ADE.
UPDATE - Feb 10, 2012
With the new Nook OS, it is no longer necessary to use ADE to load your ebooks.
Using the USB cable, connect the nook to your PC or Mac to mount the Nook as a removable drive (entitled 'media'). Drag and drop your files to the folder entitled 'Digital editions'. Eject the drive properly, and disconnect.
Now your files show up under Library/My stuff/media/Digital Editions
Is your device missing from this list above?
If your device is missing from the above list, it doesn't mean that it's not possible to get your PDF format or ePUB format eBook loaded to your reader. It just means that we haven't tested your specific device.
The first thing to try is to plug your device in to your computer using a USB cable that is provided by your eReader manufacturer. If the device shows up on your computer as a hard-drive or SD card, you may be able to transfer supported file-types directly to the device using your computer's file manager. The specific location of where to place the ebook files will depend on the file structure of the device.
For specific instructions or details on what file-types are supported by your device, we suggest that you consult the user manual that came with your eReader device or contact the manufacturer for assistance.
Still having trouble?
Email us at: firstname.lastname@example.org and we will try our best to assist you.