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.
I don't have an answer to your question, but I would suggest you read this. Perhaps your question is too vague. Perhaps this isn't the best forum. perhaps you haven't shown you've tried to do anything yourself.
People often put as much effort into answering your question as you put into asking it.
There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors
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