Объединение документов XPS в XPS и PDF

    using Aspose.Page.XPS;

    // The path to the documents directory.
    string dataDir = RunExamples.GetDataDir_WorkingWithDocumentMerging();
    // Load XPS document from XPS file
    XpsDocument document = new XpsDocument(dataDir + "input.xps", new XpsLoadOptions());

    // Create an array of XPS files that will be merged with the first one
    string[] filesToMerge = new string[] { dataDir + "Demo.xps", dataDir + "sample.xps" };

    // Merge XPS files to output XPS document
    document.Merge(filesToMerge, dataDir + "mergedXPSfiles.xps");
    }

    // The path to the documents directory.
    string dataDir = RunExamples.GetDataDir_WorkingWithDocumentMerging();
    // Initialize the PDF output stream
    using (System.IO.Stream pdfStream = System.IO.File.Open(dataDir + "mergedXPSfiles.pdf", System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write))
    // Initialize the XPS input stream
    using (System.IO.Stream xpsStream = System.IO.File.Open(dataDir + "input.xps", System.IO.FileMode.Open))
    {
        // Load the XPS document form the stream
        XpsDocument document = new XpsDocument(xpsStream, new XpsLoadOptions());
        // or load it directly from a file. No xpsStream is needed then.
        // XpsDocument document = new XpsDocument(inputFileName, new XpsLoadOptions());

        // Initialize options object with the necessary parameters.
        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
        };

        // Create a rendering device for the PDF format
        Aspose.Page.XPS.Presentation.Pdf.PdfDevice device = new Aspose.Page.XPS.Presentation.Pdf.PdfDevice(pdfStream);

        // Create an array of XPS files that will be merged with the first one
        string[] filesToMerge = new string[] { dataDir + "Demo.xps", dataDir + "sample.xps" };

        // Merge XPS files to the output PDF document
        document.Merge(filesToMerge, device, options);
    }