Do we have any open source libraries for android to create a pdf viewer app?

Question

I am trying to develop an android app which is capable of rendering pdf files. How can i render pdf files in my android app? are there any libraries for this?

Can any one suggest me some good open source libraries for android to create a pdf viewer in my app? If possible please give me some sample tutorial links to achieve this.

any help will be appreciated greate

Thanks

sathish