using Microsoft.Office.Core; using Microsoft.Office.Interop.PowerPoint;

///<summary>        /// 把PowerPoint文件转换成PDF格式文件       ///</summary>        ///<param name="sourcePath">源文件路径</param>     ///<param name="targetPath">目标文件路径</param> ///<returns>成功返回true,失败返回false</returns> public static bool PPTConvertToPDF(string sourcePath, string targetPath) {         bool result;         PpSaveAsFileType ppSaveAsFileType = PpSaveAsFileType.ppSaveAsPDF;//转换成pdf         object missing = Type.Missing;         Microsoft.Office.Interop.PowerPoint.ApplicationClass application = null;         Presentation persentation = null;         try         {             application = new Microsoft.Office.Interop.PowerPoint.ApplicationClass();             persentation = application.Presentations.Open(sourcePath, MsoTriState.msoTrue, MsoTriState.msoFalse, MsoTriState.msoFalse);             if (persentation!=null)             {                 persentation.SaveAs(targetPath, ppSaveAsFileType, MsoTriState.msoTrue);             }             result = true;         }         catch         {             result = false;         }         finally         {             if (persentation != null)             {                 persentation.Close();                 persentation = null;             }             if (application != null)             {                 application.Quit();                 application = null;             }         }         return result; }

OfficeToPdf.PPTToPDF("d:\\12345.pptx", "d:\\12345.pdf");