
It might be necessary to download and install Adobe Digital Editions (ADE). Although Sony’s newest eBook Library 3.0 software now seems to take over all prior ADE functionality (including DRM — Digital Rights Management copy protection — and returning eBooks to the public library), Browse, checkout and download eBooks for public library free, all you need is a library card and an Adobe account. ADE will prompt you to register the software and authorize your desktop/notebook machine. Do so! This is required to enable your machine to deal with the necessary Adobe-provided copy-protection (DRM).
You also need download Digital Editions Converter that will convert ebooks to PDF file, click to download it
1). Run Digital Editions to open your Sony Reader Library ebooks.

2). Run Digital Editions Converter, it will find Digital Editions automatically.

3). Click “Next” to go to step 2, set PDF file name and where to save pdf file.
3). Click “Capture” in step 4, the converter will roll the page down one by one, it will open PDF file when work finished.