Q: Does PDFTron provide a PDFNet SDK that can be used as a Portable Class Library?
However, the various SDKs have mostly-identical APIs, so there are other ways to share code between platforms. Please take a look at the PDFNet SDK for Windows Store apps (Windows 8.1 and Windows Phone 8.1) for an example.
A: In order to provide the highest possible performance, the SDK contains platform-specific native code for each different Windows platform and target architecture. Since the SDK contains native code, it is not PCL-compatible.