public class OfficeConvert

    {

        static string getLibreOfficePath()

        {

            switch (Environment.OSVersion.Platform)

            {

                case PlatformID.Unix:

                    return "/usr/bin/soffice";

                case PlatformID.Win32NT:

                    string binaryDirectory = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);

                    return binaryDirectory + "\\Windows\\program\\soffice.exe";

                default:

                    throw new PlatformNotSupportedException("你的系统暂不支持！");

            }

        }

        public static void ToPdf(string officePath, string outPutPath)

        {

            //获取libreoffice命令的路径

            string libreOfficePath = getLibreOfficePath();

            ProcessStartInfo procStartInfo = new ProcessStartInfo(libreOfficePath, string.Format("--convert-to pdf --outdir {0} --nologo {1}", outPutPath, officePath));

            procStartInfo.RedirectStandardOutput = true;

            procStartInfo.UseShellExecute = false;

            procStartInfo.CreateNoWindow = true;

            procStartInfo.WorkingDirectory = Environment.CurrentDirectory;

            //开启线程

            Process process = new Process() { StartInfo = procStartInfo, };

            process.Start();

            process.WaitForExit();

            if (process.ExitCode != 0)

            {

                throw new LibreOfficeFailedException(process.ExitCode);

            }

        }

    }

    public class LibreOfficeFailedException : Exception

    {

        public LibreOfficeFailedException(int exitCode)

            : base(string.Format("LibreOffice错误 {0}", exitCode))

        { }

    }