public byte[] Compress(string path)
        {
            MemoryStream stream;

            using (FileStream fileStream = File.Open(path, FileMode.Open, FileAccess.Read))
            {
                using (MemoryStream zipToCreate = new MemoryStream())
                {
                    using (ZipArchive archive = new ZipArchive(zipToCreate, ZipArchiveMode.Create, true))
                    {
                        ZipArchiveEntry fileEntry = archive.CreateEntry(Path.GetFileName(path));
                        using (var entryStream = fileEntry.Open())
                        {
                            fileStream.CopyTo(entryStream);
                        }
                        stream = zipToCreate;
                    }
                }
            }

            return stream.ToArray();
        }