If like me you use Play Book to store books and manuals, you will be sad to read the great Subversion book: svnbook. PDF format import fails to parse table of content and its navigation links. So I make the epub build of the book and everything works well now.
So for everyone who need it, I share the svnbook under the epub format:
![svnbook](https://blog.hardcoding.fr/wp-content/uploads/2013/08/svnbook-150x150.png)
Please note svnbook is maintained by svnbook.red-bean.com under open source licence.