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Aspose.Page pour .Net 22.7

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  • 1
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  • 31.74MB
  • Date Added:
  • 14/7/2022

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Convertir XPS en formats d’image

Convertissez XPS en formats d’image avec l’option de définir la taille d’image requise. Prend en charge la conversion XPS aux formats d’image raster BMP, JPG, PNG et TIFF. Voici le code C# du convertisseur XPS vers PNG qui utilise l’API de traitement XPS :

// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_WorkingWithDocumentConversion();
// Input file
string inputFileName = dataDir + "input.xps";
//Outut file 
string outputFileName = dataDir + "XPStoImage_out.png";
// Initialize XPS input stream
using (Stream xpsStream = File.Open(inputFileName, FileMode.Open, FileAccess.Read))
{
    // Load XPS document form the stream
    XpsDocument document = new XpsDocument(xpsStream, new XpsLoadOptions());
    // or load XPS document directly from file. No xpsStream is needed then.
    // XpsDocument document = new XpsDocument(inputFileName, new XpsLoadOptions());

    // Initialize options object with necessary parameters.
    PngSaveOptions options = new PngSaveOptions()
    {
        SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality,
        Resolution = 300,
        PageNumbers = new int[] { 1, 2, 6 }
    };

    // Create rendering device for image
    ImageDevice device = new ImageDevice();

    document.Save(device, options);

    // Iterate through document partitions (fixed documents, in XPS terms)
    for (int i = 0; i < device.Result.Length; i++)
        // Iterate through partition pages
        for (int j = 0; j < device.Result[i].Length; j++)
        {
            // Initialize image output stream
            using (Stream imageStream = System.IO.File.Open(Path.GetDirectoryName(outputFileName) +
                Path.GetFileNameWithoutExtension(outputFileName) + "_" + (i + 1) + "_" + (j + 1) +
                Path.GetExtension(outputFileName), System.IO.FileMode.Create, System.IO.FileAccess.Write))
                // Write image
                imageStream.Write(device.Result[i][j], 0, device.Result[i][j].Length);
        }
}

Pour une liste complète des fonctionnalités, améliorations et corrections de bogues de cette version, veuillez consulter Aspose.Page for .NET 22.7 Release Notes.

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