Modernizing Legacy PowerPoint: คู่มือการย้าย PPT เป็น PPtX เต็มรูปแบบใน C#

using (Presentation presentation = new Presentation("input.pptx"))
{
    PdfOptions options = new PdfOptions();
    options.Compliance = PdfCompliance.Pdf15;
    presentation.Save("output.pdf", SaveFormat.Pdf, options);
}

using (var presentation = new Presentation("input.pptx"))
{
    Convert.ToPdf(presentation, "output.pdf");
}

using Aspose.Slides;
using Aspose.Slides.LowCode;

public class PresentationConverter
{
    public static void ConvertPptToPptx(string inputFile, string outputFile)
    {
        // Simple conversion using LowCode API
        using (var presentation = new Presentation(inputFile))
        {
            presentation.Save(outputFile, SaveFormat.Pptx);
        }
    }
    
    public static void BatchConvert(string[] inputFiles, string outputDirectory)
    {
        foreach (var file in inputFiles)
        {
            var outputFile = Path.Combine(outputDirectory, 
                Path.GetFileNameWithoutExtension(file) + ".pptx");
            ConvertPptToPptx(file, outputFile);
        }
    }
}

using Aspose.Slides;
using Aspose.Slides.LowCode;
using Aspose.Slides.Export;

public class AdvancedProcessor
{
    public static void ProcessWithOptions(string inputFile, string outputFile)
    {
        using (var presentation = new Presentation(inputFile))
        {
            // Modify presentation as needed
            foreach (var slide in presentation.Slides)
            {
                // Custom processing
            }
            
            // Export using LowCode
            presentation.Save(outputFile, SaveFormat.Pptx);
        }
    }
}

using Aspose.Slides;
using Aspose.Slides.LowCode;
using System.IO;
using System.Linq;

public class BatchProcessor
{
    public static void ProcessDirectory(string sourceDir, string targetDir)
    {
        Directory.CreateDirectory(targetDir);
        
        var files = Directory.GetFiles(sourceDir, "*.pptx");
        
        foreach (var file in files)
        {
            try
            {
                var fileName = Path.GetFileNameWithoutExtension(file);
                var outputFile = Path.Combine(targetDir, fileName + ".pdf");
                
                using (var presentation = new Presentation(file))
                {
                    Convert.ToPdf(presentation, outputFile);
                }
                
                Console.WriteLine($"✓ Processed: {fileName}");
            }
            catch (Exception ex)
            {
                Console.WriteLine($"✗ Failed: {Path.GetFileName(file)} - {ex.Message}");
            }
        }
    }
}

using System.Threading.Tasks;
using System.Collections.Concurrent;

public class ParallelProcessor
{
    public static async Task ProcessParallel(string[] files, string outputDir)
    {
        var results = new ConcurrentBag<(string file, bool success)>();
        
        await Parallel.ForEachAsync(files, async (file, cancellationToken) =>
        {
            try
            {
                var outputFile = Path.Combine(outputDir, 
                    Path.GetFileNameWithoutExtension(file) + ".pdf");
                
                using (var presentation = new Presentation(file))
                {
                    Convert.ToPdf(presentation, outputFile);
                }
                
                results.Add((file, true));
            }
            catch
            {
                results.Add((file, false));
            }
        });
        
        var successful = results.Count(r => r.success);
        Console.WriteLine($"Processed {successful}/{files.Length} files");
    }
}

using Azure.Storage.Blobs;
using System.IO;

public class CloudProcessor
{
    public static async Task ProcessFromCloudAsync(
        string blobConnectionString,
        string containerName,
        string blobName)
    {
        var blobClient = new BlobContainerClient(blobConnectionString, containerName);
        var inputBlob = blobClient.GetBlobClient(blobName);
        
        using (var inputStream = new MemoryStream())
        using (var outputStream = new MemoryStream())
        {
            // Download from cloud
            await inputBlob.DownloadToAsync(inputStream);
            inputStream.Position = 0;
            
            // Process using LowCode
            using (var presentation = new Presentation(inputStream))
            {
                Convert.ToPdf(presentation, outputStream);
            }
            
            // Upload to cloud
            outputStream.Position = 0;
            var outputBlob = blobClient.GetBlobClient("output.pdf");
            await outputBlob.UploadAsync(outputStream, overwrite: true);
        }
    }
}

// Use 'using' statements for automatic disposal
using (var presentation = new Presentation("large-file.pptx"))
{
    Convert.ToPdf(presentation, "output.pdf");
}
// Memory is automatically released here

public static void ProcessInBatches(string[] files, int batchSize = 10)
{
    for (int i = 0; i < files.Length; i += batchSize)
    {
        var batch = files.Skip(i).Take(batchSize);
        ProcessBatch(batch);
        
        // Force garbage collection between batches
        GC.Collect();
        GC.WaitForPendingFinalizers();
    }
}

var options = new ParallelOptions
{
    MaxDegreeOfParallelism = Environment.ProcessorCount / 2
};

Parallel.ForEach(files, options, file =>
{
    // Process file
});

try
{
    using (var presentation = new Presentation(inputFile))
    {
        Convert.ToPdf(presentation, outputFile);
    }
}
catch (Aspose.Slides.PptxReadException ex)
{
    Console.WriteLine($"Corrupt file: {ex.Message}");
}
catch (IOException ex)
{
    Console.WriteLine($"File access error: {ex.Message}");
}
catch (Exception ex)
{
    Console.WriteLine($"Unexpected error: {ex.Message}");
}

Presentation presentation = null;
try
{
    presentation = new Presentation(inputFile);
    Convert.ToPdf(presentation, outputFile);
}
finally
{
    presentation?.Dispose();
}

using Microsoft.Extensions.Logging;

public class ProcessorWithLogging
{
    private readonly ILogger<ProcessorWithLogging> _logger;
    
    public void Process(string file)
    {
        _logger.LogInformation("Processing {File}", file);
        
        try
        {
            using (var presentation = new Presentation(file))
            {
                Convert.ToPdf(presentation, "output.pdf");
            }
            
            _logger.LogInformation("Successfully processed {File}", file);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Failed to process {File}", file);
            throw;
        }
    }
}