You can use the "Export to PDF" or "Export to Word" functions on the documentation page in the screenshot below. To do this, select the manual you want to export and the PDF or Word option.
If you do, remember that this is a fast-paced project that, at the time of writing, has just celebrated the release of JBoss Application Server 7.1.0. This means that there will be many tired and excited members catching up and expanding community documentation. Just make sure you regularly update your local copies and check back often.
