XPS文件转换为PDF不再愁！全新XPS/EPS文档处理神器Aspose.Page来啦！

//文档目录的路径。
string dataDir = RunExamples.GetDataDir_WorkingWithDocumentConversion();
//初始化PDF输出流
using (System.IO.Stream pdfStream = System.IO.File.Open(dataDir + "input.xps", System.IO.FileMode.Create, System.IO.FileAccess.Write))
//初始化XPS输入流
using (System.IO.Stream xpsStream = System.IO.File.Open(dataDir + "XPStoPDF.pdf", System.IO.FileMode.Open, System.IO.FileAccess.Read))
{
    //从流中加载XPS文档
    XpsDocument document = new XpsDocument(xpsStream, new XpsLoadOptions());
    //或直接从文件加载XPS文档。那么不需要xpsStream。
    // XpsDocument document = new XpsDocument(inputFileName, new XpsLoadOptions());

    //使用必要参数初始化选项对象。
    Aspose.Page.Xps.Presentation.Pdf.PdfSaveOptions options = new Aspose.Page.Xps.Presentation.Pdf.PdfSaveOptions()
    {
        JpegQualityLevel = 100,
        ImageCompression = Aspose.Page.Xps.Presentation.Pdf.PdfImageCompression.Jpeg,
        TextCompression = Aspose.Page.Xps.Presentation.Pdf.PdfTextCompression.Flate,
        PageNumbers = new int[] { 1, 2, 6 }
    };

    //为PDF格式创建渲染设备
    Aspose.Page.Xps.Presentation.Pdf.PdfDevice device = new Aspose.Page.Xps.Presentation.Pdf.PdfDevice(pdfStream);

    document.Save(device, options);
}

// 文档目录的路径。
String dataDir = Utils.getDataDir();
//初始化PDF输出流
FileOutputStream pdfStream = new FileOutputStream(dataDir + "XPStoPDF.pdf");

//加载XPS文档
XpsDocument document = new XpsDocument(dataDir + "input.xps");

//使用必要参数初始化选项对象。
com.aspose.xps.rendering.PdfSaveOptions options = new com.aspose.xps.rendering.PdfSaveOptions();
options.setJpegQualityLevel(100);
options.setImageCompression(com.aspose.xps.rendering.PdfImageCompression.Jpeg);
options.setTextCompression(com.aspose.xps.rendering.PdfTextCompression.Flate);
options.setPageNumbers(new int[] { 1, 2, 6 });

//为PDF格式创建渲染设备
com.aspose.xps.rendering.PdfDevice device = new com.aspose.xps.rendering.PdfDevice(pdfStream);

document.save(device, options);