/// <summary>
        /// Convert document from request content to format specified.	
        /// </summary>
        /// <param name="format">The destination format.</param>
        /// <param name="outPath">Path to save result. Must be a cloud storage path (MyFolder\out.doc).</param>
        /// <param name="inputFilePath">Input file e.g. c:\input.doc).</param>
        public void ConvertDocument(WordOutputFormat format, string outPath, string inputFilePath)
        {
            // PUT 	words/convert?appSid={appSid}&format={format}&outPath={outPath} 

            string apiUrl = string.Format(@"words/convert?format={0}&outPath={1}",
                                            format, outPath);

            ServiceController.Put(apiUrl, AppSid, AppKey, File.ReadAllBytes(inputFilePath));
        }
        /// <summary>
        /// Convert document to format specified.	
        /// </summary>
        /// <param name="name">The file name.</param>
        /// <param name="format">The destination format.</param>
        /// <param name="folder">The document folder.</param>
        /// <param name="outPath">Path to save result. It can be local (e.g. c:\out.doc) or cloud storage path (MyFolder\out.doc).</param>
        /// <param name="storage">The document storage.</param>
        public void ConvertDocument(string name, WordOutputFormat format, string folder, string outPath, string storage = "")
        {
            // GET 	words/{name}?appSid={appSid}&format={format}&storage={storage}&folder={folder}&outPath={outPath} 

            string apiUrl = string.Format(@"words/{0}?format={1}&storage={2}&folder={3}&outPath={4}",
                                                name, format, storage, folder, (outPath.Contains(@":\") ? string.Empty : outPath));

            if (!string.IsNullOrEmpty(outPath) && Directory.Exists(Path.GetDirectoryName(outPath)))
            {
                using (Stream responseStream = ServiceController.GetStream(apiUrl, AppSid, AppKey))
                using (Stream file = File.OpenWrite(outPath))
                {
                    ServiceController.CopyStream(responseStream, file);
                }
            }
            else
            {
                ServiceController.Get(apiUrl, AppSid, AppKey);
            }
        }