1. using Microsoft.Office.Interop.PowerPoint;
  2. using Microsoft.Office.Core;
  3. using System.IO;
  5. try
  6. {
  7. FileInfo objfile = new FileInfo(FileUpload1.PostedFile.FileName);
  8. if (objfile.Extension.Equals(".ppt"))
  9. {
  10. ApplicationClass pptApplication = new Microsoft.Office.Interop.PowerPoint.ApplicationClass();
  11. Presentation pptPresentation = pptApplication.Presentations.Open(objfile.FullName, MsoTriState.msoFalse, MsoTriState.msoFalse, MsoTriState.msoFalse);
  12. pptPresentation.Export(objfile.FullName, "jpg", Int32.Parse(pptPresentation.SlideMaster.Width.ToString()), Int32.Parse(pptPresentation.SlideMaster.Height.ToString()));
  13. }
  14. else
  15. {
  16. Response.Write("Please choose PowerPoint files only");
  17. }
  18. }
  19. catch (Exception ex)
  20. { }