iPad ePub Transfer is the best solution. iPad PDF Transfercan skip the step to transfer eBooks to iTunes firstly and then transfer them to iPad. It enables you to transfer the most common-used eBook formats PDF and EPUB files between iPad and your PC directly without iTunes and backup PDF and EPUB files in iTunes for further usage. Apart from this, iPad PDF Transfer also allows you to customize the ebooks files by editing information, like name and author.
This PDF to iPad transfer is compatible with various iPad, iPod touch and iPhone versions, such as iPod touch2, iPod touch3, iPhone 3G, iPhone 3GS, iPhone 4 and iPad.
For Mac OS user, you can use the iPad ePub Transfer Mac. It can help you transfer ePub eBooks from iPad to Mad, or import ePub to iPad on Mac.
Step 1. Install the iPad ePub Transfer, connect iPad to Computer
Install the iPad PDF Transfer, the interface will pop up. Then establish a connection between your computer and iPad using the included USB cord. The iPad PDF Transfer software will automatically detect and list files on your iPad.
Step 2. Select and transfer eBooks to iPad
Click the "import" button to select the ePub files that you want to import to iPad and click OK. The process of importing will be finished instantly. Now, you can see ePub on your iPad.
Step 3. Export ePub from iPad to computer
Run the iPad ePub Transfer, connect your iPad to computer via USB cable. Then iPad library and playlists will appear in the Device list.
Open the iTunes eBooks or Custom eBooks that you want to export files, and then check the file(s) you want to export in the file list. Click "export" button to set the destination file and start transferring iPad ePub files to your computer.
That's OK! Transferring ebooks to itunes has been done.
This PDF to iPad transfer is compatible with various iPad, iPod touch and iPhone versions, such as iPod touch2, iPod touch3, iPhone 3G, iPhone 3GS, iPhone 4 and iPad.
For Mac OS user, you can use the iPad ePub Transfer Mac. It can help you transfer ePub eBooks from iPad to Mad, or import ePub to iPad on Mac.
Step 1. Install the iPad ePub Transfer, connect iPad to Computer
Install the iPad PDF Transfer, the interface will pop up. Then establish a connection between your computer and iPad using the included USB cord. The iPad PDF Transfer software will automatically detect and list files on your iPad.

Step 2. Select and transfer eBooks to iPad
Click the "import" button to select the ePub files that you want to import to iPad and click OK. The process of importing will be finished instantly. Now, you can see ePub on your iPad.

Step 3. Export ePub from iPad to computer
Run the iPad ePub Transfer, connect your iPad to computer via USB cable. Then iPad library and playlists will appear in the Device list.
Open the iTunes eBooks or Custom eBooks that you want to export files, and then check the file(s) you want to export in the file list. Click "export" button to set the destination file and start transferring iPad ePub files to your computer.

That's OK! Transferring ebooks to itunes has been done.