PdfSharp C# libraries allowing XPS to PDF export
This repository contains a Visual Studio 2015 / .Net 4.5 build of PdfSharp 1.32 with XPS support. As far as I could investigate PdfSharp-XPS library is no longer maintained since PdfSharp release 1.32 which means 1.50b3 version won't support PDF export from FlowDocument / FixedDocument / XpsDocument.
Installation is as simple as adding references to PdfSharp\PdfSharp-WPF.csproj and PdfSharp.Xps\PdfSharp.Xps.csproj in your solution.
Example of use (saving XpsDocument object to pdf file):
PdfSharp.Xps.XpsConverter.Convert(xpsDocument, pdfFileName, 0);
For other scenarios please refer to XpsConverter.cs converter implementation.