العمل مع البيانات الوصفية في PDF في .NET SDK

    public static void AddMetadata()
    {
        const string localImageFileName = @"C:\Samples\sample.pdf";
        const string storageFileName = "sample.pdf";
        
        // Get your AppSid and AppSecret https://dashboard.aspose.cloud (free registration required).
        var pdfApi = new PdfApi(AppSecret, AppSid);
        var filesOnStorage = pdfApi.GetFilesList("");
        if (filesOnStorage.Value.All(f => f.Name != "sample.pdf"))
        {
            using var file = File.OpenRead(localImageFileName);
            var uploadResult = pdfApi.UploadFile(storageFileName, file);
            Console.WriteLine(uploadResult.Uploaded[0]);
        }
        var response = pdfApi.PutSetProperty(storageFileName, "xmp:ArchiveDate", 
            DateTime.Today.ToString(CultureInfo.InvariantCulture));
        Console.WriteLine(response.Status);
    }