This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Portlets in Action is the better book in my opinion, and while it refers heavily to Liferay in the examples it is still largely server agnostic. There is the chance it is a better Liferay reference book than Liferay in Action too
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com