如何在 .NET 中将 TOC 添加到多个 PDF

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

string inputDir = @"C:\Docs\Input";
string outputDir = @"C:\Docs\TOC";
Directory.CreateDirectory(outputDir);

string[] pdfFiles = Directory.GetFiles(inputDir, "*.pdf");

foreach (var pdfFile in pdfFiles)
{
    string outFile = Path.Combine(outputDir, Path.GetFileName(pdfFile));
    var generator = new TocGenerator();
    var options = new TocOptions();
    options.AddInput(new FileDataSource(pdfFile));
    options.AddOutput(new FileDataSource(outFile));

    // Optional: Customize TOC (multi-level, custom titles)
    // options.Levels = 2; // For two-level TOCs
    // options.Title = "Table of Contents";

    generator.Process(options);
    Console.WriteLine($"TOC added: {outFile}");
}