MuPDF.NET is a high-performance C# library for reading, writing, rendering, and manipulating PDF, XPS, EPUB, and other document formats. It exposes the full power of the MuPDF C engine — as clean, ...

For C# programs, this is a main reason that causes ephemeral objects to survive (for F# programs, not so much). You can see this from the Raw XML generated by the GCStats view (click on the "Raw Data ...