通dnSpy的内存搜索去除Spire.XLS的PDF水印

var wb = new Workbook();wb.Crack();

    public static class SpireOfficeHelpers    {        public static void Print(string path)        {            var wb = new Workbook();            wb.Crack();            wb.LoadFromFile(path);            var p = wb.PrintDocument;#pragma warning disable CA1416 // 验证平台兼容性            p.Print();#pragma warning restore CA1416 // 验证平台兼容性        }        public static void Print(byte[] bytes)        {            MemoryStream memeStream = new(bytes);            var wb = new Workbook();            wb.Crack();            wb.LoadFromStream(memeStream);            var p = wb.PrintDocument;#pragma warning disable CA1416 // 验证平台兼容性            p.Print();#pragma warning restore CA1416 // 验证平台兼容性        }        /// <summary>        /// 注入激活信息        /// </summary>        /// <param name="workbook"></param>        public static void Crack(this Workbook workbook)        {            CrackLicense(workbook);        }        /// <summary>        /// 注入激活信息        /// </summary>        /// <param name="document"></param>        public static void Crack(this Document document)        {            CrackLicense(document);        }        /// <summary>        /// 注入激活信息，并返回该类型        /// </summary>        /// <typeparam name="T"></typeparam>        /// <param name="t"></param>        /// <returns></returns>        public static T CrackLicense<T>(T t) where T : class        {            var InternalLicense = t.GetType().GetProperty("InternalLicense", BindingFlags.NonPublic | BindingFlags.Instance);            var TypeLic = InternalLicense.PropertyType.Assembly.CreateInstance(InternalLicense.PropertyType.GetTypeInfo().FullName);            foreach (var item in TypeLic.GetType().GetFields(BindingFlags.NonPublic | BindingFlags.Instance))            {                if (item.FieldType.IsArray)                {                    item.SetValue(TypeLic, new string[] { "Spire.Spreadsheet", "Spire.DocViewer.Wpf" });                }                else if (item.FieldType.IsEnum)                {                    item.SetValue(TypeLic, 3);                }            }            InternalLicense.SetValue(t, TypeLic);            return t;        }    }