Mesclar imagens

Aspose.PDF 21.4 permite que você combine Imagens. O método Merge Images verifica o conteúdo de uma pasta específica e trabalha com o tipo de arquivos especificado nela. Ao trabalhar com a mesclagem de imagens, especificamos ‘inputImagesStreams’, Formato da Imagem e Modo de Mesclagem de Imagem (como exemplo - vertical) do nosso arquivo. Em seguida, salvamos nosso resultado em FileOutputStream.

Siga o próximo trecho de código para resolver sua tarefa:

Mesclar Imagens

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void MergeImages01()
{
    var dataDir = RunExamples.GetDataDir_AsposePdf_Images();  // Updated to use dynamic path
    // Get all image files matching the pattern "MergeImages*.jpg"
    var fileStreams = Directory.GetFiles(dataDir, "MergeImages*.jpg")
                                .OrderBy(f => f)
                                .Select(f => File.OpenRead(f))
                                .Cast<Stream>()
                                .ToList();

    using (Stream inputStream = Aspose.Pdf.Facades.PdfConverter.MergeImages(fileStreams, Aspose.Pdf.Drawing.ImageFormat.Jpeg, ImageMergeMode.Vertical, 1, 1))
    using (FileStream outputStream = new FileStream(dataDir + "MergeImages_out.jpg", FileMode.Create))
    {
        // Copy merged images to the output file
        inputStream.CopyTo(outputStream);
    }
}

O segundo exemplo funciona da mesma forma que o anterior, mas as imagens mescladas serão salvas horizontalmente.

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void MergeImages02()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Images();

    // Get all image files matching the pattern "MergeImages*.jpg"
    var fileStreams = Directory.GetFiles(dataDir, "MergeImages*.jpg")
                            .OrderBy(f => f)
                            .Select(f => File.OpenRead(f))
                            .Cast<Stream>()
                            .ToList();

    using (Stream inputStream =
            Aspose.Pdf.Facades.PdfConverter.MergeImages(fileStreams, Aspose.Pdf.Drawing.ImageFormat.Jpeg, ImageMergeMode.Horizontal, 1, 1))
    using (FileStream outputStream = new FileStream(dataDir + "MergeImages02_out.jpg", FileMode.Create))
    {
        // Copy merged images to the output file
        inputStream.CopyTo(outputStream);
    }
}

No terceiro exemplo, mesclaremos as imagens centralizando-as. Duas horizontalmente, duas verticalmente.

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void MergeImages03()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Images();

    // Get all image files matching the pattern "MergeImages*.jpg"
    var fileStreams = Directory.GetFiles(dataDir, "MergeImages*.jpg")
                            .OrderBy(f => f)
                            .Select(f => File.OpenRead(f))
                            .Cast<Stream>()
                            .ToList();

    using (Stream inputStream =
            Aspose.Pdf.Facades.PdfConverter.MergeImages(fileStreams, Aspose.Pdf.Drawing.ImageFormat.Jpeg, ImageMergeMode.Center, 2, 2))
    using (FileStream outputStream = new FileStream(dataDir + "MergeImages03_out.jpg", FileMode.Create))
    {
        // Copy merged images to the output file
        inputStream.CopyTo(outputStream);
    }
}

Além disso, Aspose.PDF para Java apresenta a oportunidade de combinar imagens e salvá-las no formato Tiff, usando o MergeImagesAsTiff Method.

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void MergeImages04()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Images();

    // Get all image files matching the pattern "MergeImages*.jpg"
    var fileStreams = Directory.GetFiles(dataDir, "MergeImages*.jpg")
                            .OrderBy(f => f)
                            .Select(f => File.OpenRead(f))
                            .Cast<Stream>()
                            .ToList();

    using (Stream inputStream =
            Aspose.Pdf.Facades.PdfConverter.MergeImagesAsTiff(fileStreams))
    using (FileStream outputStream = new FileStream(dataDir + "MergeImages_out.tiff", FileMode.Create))
    {
        // Copy merged images to the output file
        inputStream.CopyTo(outputStream);
    }
}

Para salvar as imagens mescladas como uma única imagem na página PDF, colocamos elas no imageStream, colocamos o resultado na página com o método addImage, onde especificamos as coordenadas onde queremos colocá-las.

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void MergeImages05()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Images();

    // Get all image files matching the pattern "MergeImages*.jpg"
    var fileStreams = Directory.GetFiles(dataDir, "MergeImages*.jpg")
                                .OrderBy(f => f)
                                .Select(f => File.OpenRead(f))
                                .Cast<Stream>()
                                .ToList();

    using (Stream inputStream =
            Aspose.Pdf.Facades.PdfConverter.MergeImages(fileStreams, Aspose.Pdf.Drawing.ImageFormat.Jpeg, ImageMergeMode.Vertical, 1, 1))
    using (MemoryStream outputStream = new MemoryStream())  // Output to MemoryStream
    {
        // Copy merged images to the MemoryStream
        inputStream.CopyTo(outputStream);

        // Create PDF document
        using (var document = new Aspose.Pdf.Document())
        {
            // Add page
            var page = document.Pages.Add();

            // Add the image from the MemoryStream to the page
            page.AddImage(outputStream, new Aspose.Pdf.Rectangle(10, 120, 400, 720));

            // Save PDF document
            document.Save(dataDir + "MergeImages_out.pdf");
        }
    }
}