如何在C#中比较多个PDF文件并获得页数最少的PDF？

using iTextSharp.text;
using iTextSharp.text.pdf;
using System.IO;

public static string ComparePDFs(string[] pdfFilePaths)
{
    int minPageCount = int.MaxValue;
    string minPageCountPDFPath = string.Empty;
    
    foreach (string filePath in pdfFilePaths)
    {
        int pageCount = GetPDFPageCount(filePath);
        
        if (pageCount < minPageCount)
        {
            minPageCount = pageCount;
            minPageCountPDFPath = filePath;
        }
    }
    
    return minPageCountPDFPath;
}

public static int GetPDFPageCount(string filePath)
{
    using (PdfReader reader = new PdfReader(filePath))
    {
        return reader.NumberOfPages;
    }
}

string[] pdfFilePaths = new string[] { "path/to/pdf1.pdf", "path/to/pdf2.pdf", "path/to/pdf3.pdf" };
string minPageCountPDFPath = ComparePDFs(pdfFilePaths);