Spire.PDF for .NET

Spire.PDF for .NET enables your .NET applications to generate, open, draw, edit, protect, save and convert PDF documents without using Adobe Acrobat. It enables developers to build any WinForm or Web applications in C# and Visual Basic to manipulate PDF documents. The featured function: conversion enables developers to convert HTML(Website), Image and TXT files to PDF with high fidelity. And in this new version, other amazing conversion types are supported, incluidng conversion between PDF and XPS and PDF to Image. The following list presents details about new features.
1)supports converting PDF document to images
2)supports converting PDF document to XPS document
3)supports converting XPS document to PDF document
More details, http://www.e-iceblue.com/Introduce/pdf-for-net-introduce.html