C#将PPT文件转换成PDF文件

这里在提供c#代码，将ppt转成pdf.直接上代码；

要引入microsoft.office.interop.powerpoint; 版本12.0.0.0；

using system;
using system.collections.generic;
using system.io;
using system.linq;
using system.text;
using system.runtime.interopservices;
using microsoft.office.interop.powerpoint;
//office 命名空间
namespace officetopdf
{
  //excel 类
  class powerpointconverter
  {
    //构造函数
    public powerpointconverter()
    { }
    /// <summary>
    /// 转换powerpoint 成pdf文档
    /// </summary>
    /// <param name="_lstrinputfile">原文件路径</param>
    /// <param name="_lstroutfile">pdf文件输出路径</param>
    /// <returns>true 成功</returns>
    public bool convertertopdf(string _lstrinputfile, string _lstroutfile)
    {
      microsoft.office.interop.powerpoint.application lobjpowerpointapp = null;
      microsoft.office.interop.powerpoint.presentation lobjppt = null;
      object lobjmissing = system.reflection.missing.value;
      object lobjsavechanges = null;
      try
      {
        lobjpowerpointapp = new microsoft.office.interop.powerpoint.application();
        lobjppt = lobjpowerpointapp.presentations.open(_lstrinputfile, mscore.msotristate.msotrue, mscore.msotristate.msofalse, mscore.msotristate.msofalse);
        lobjppt.saveas(_lstroutfile, ppsaveasfiletype.ppsaveaspdf, mscore.msotristate.msoctrue);       
      }
      catch (exception ex)
      {
        //其他日志操作；
        return false;
      }
      finally
      {
        if (lobjppt != null)
        {
          lobjppt.close();
          marshal.releasecomobject(lobjppt);
          lobjppt = null;
        }
        if (lobjpowerpointapp != null)
        {
          lobjpowerpointapp.quit();
          marshal.releasecomobject(lobjpowerpointapp);
          lobjpowerpointapp = null;
        }
        //主动激活垃圾回收器，主要是避免超大批量转文档时，内存占用过多，而垃圾回收器并不是时刻都在运行！
        gc.collect();
        gc.waitforpendingfinalizers();
      }
      return true;
    }
  }
}

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