Where can I find PDFNet API Reference for JAVA?

Q: I am interesting in acquiring the API reference for the PDFTron
libraries for Java. The online reference at http://www.pdftron.com/net/apiref.html
is only describing the .net version. Could you please tell me if it’s
available online? If not, how do I acquire it?
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A: For online browsing you can access PDFNet API Reference for JAVA
using the following link:
    http://www.pdftron.com/net/Javadoc/

For offline browsing you can access PDFNet API Reference for JAVA
under /PDFNet/Doc/Javadoc/index.html

The online reference at http://www.pdftron.com/net/apiref.html is
only describing the .net version

Actually this is a C/C++ version of the API Reference. Because PDFNet
API is same accross different languages (apart from minor syntax
differences), you could refer to any variant of the API Reference.