如何使用 Aspose.PDF PDF/A 转换为 .NET

PM> Install-Package Aspose.PDF

using Aspose.Pdf.Plugins;
using System.IO;

// Create conversion options and specify PDF/A version
var options = new PdfAConvertOptions {
    PdfAVersion = PdfAStandardVersion.PDF_A_3B // Change to desired version
};
options.AddInput(new FileDataSource(@"C:\Samples\sample.pdf"));
options.AddOutput(new FileDataSource(@"C:\Samples\sample_pdfa.pdf"));

// Create the plugin instance and run conversion
var plugin = new PdfAConverter();
plugin.Process(options);

var options = new PdfAValidateOptions {
    PdfAVersion = PdfAStandardVersion.PDF_A_1A // Set required version
};
options.AddInput(new FileDataSource(@"C:\Samples\file-to-check.pdf"));

var plugin = new PdfAConverter();
var resultContainer = plugin.Process(options);

for (var i = 0; i < resultContainer.ResultCollection.Count; i++)
{
    var result = resultContainer.ResultCollection[i];
    var validationResult = (PdfAValidationResult)result.Data;
    bool isValid = validationResult.IsValid; // true if compliant
    // Use validationResult.StandardVersion and validationResult.DataSource as needed
}

string[] files = Directory.GetFiles(@"C:\PDFs", "*.pdf");
var plugin = new PdfAConverter();
foreach (var file in files)
{
    var options = new PdfAConvertOptions {
        PdfAVersion = PdfAStandardVersion.PDF_A_2B
    };
    options.AddInput(new FileDataSource(file));
    options.AddOutput(new FileDataSource($@"C:\PDFs\archive\{Path.GetFileNameWithoutExtension(file)}_pdfa.pdf"));
    plugin.Process(options);
}

var options = new PdfAConvertOptions {
    PdfAVersion = PdfAStandardVersion.PDF_A_3A,
    OptimizeFileSize = true, // Reduce file size
    IccProfileFileName = @"C:\ColorProfiles\CustomICC.icc", // Use custom color profile
    IsLowMemoryMode = true   // Reduce memory usage
};
options.AddInput(new FileDataSource("input.pdf"));
options.AddOutput(new FileDataSource("output_pdfa.pdf"));
// Add log output to track process
options.LogOutputSource = new FileDataSource("conversion-log.txt");
var plugin = new PdfAConverter();
plugin.Process(options);

var options = new PdfAConvertOptions {
    PdfAVersion = PdfAStandardVersion.PDF_A_3B,
    ErrorAction = ConvertErrorAction.Continue // Skip problematic elements and continue
};
// Configure inputs and outputs...

using Aspose.Pdf.Plugins;
using System;
using System.IO;

class Program
{
    static void Main()
    {
        var options = new PdfAConvertOptions {
            PdfAVersion = PdfAStandardVersion.PDF_A_3B,
            OptimizeFileSize = true
        };
        options.AddInput(new FileDataSource(@"C:\PDFs\input.pdf"));
        options.AddOutput(new FileDataSource(@"C:\PDFs\output_pdfa.pdf"));
        var plugin = new PdfAConverter();
        plugin.Process(options);
    }
}