GdPicture Imaging Forums

Code: Select all

  
      Dim oGdPictureImaging As New GdPictureImaging()
      Dim oGdPicturePDF As New GdPicturePDF


      If oGdPicturePDF.LoadFromFile("c:\test.pdf", False) = GdPictureStatus.OK Then
         Dim TiffID As Integer
         For i As Integer = 1 To oGdPicturePDF.GetPageCount()
            oGdPicturePDF.SelectPage(i)
            Dim RasterPageID As Integer = oGdPicturePDF.RenderPageToGdPictureImageEx(200, True) '200 DPI rendering with form fields, or native image extraction if the page is image based
            'Convert rendered page to bitonal
            oGdPictureImaging.ConvertTo1Bpp(RasterPageID) 'Remove this line if you want to obtain colour tiff image
            If i = 1 Then
               TiffID = RasterPageID
               oGdPictureImaging.TiffSaveAsMultiPageFile(TiffID, "c:\multipage.tif", TiffCompression.TiffCompressionAUTO)
            Else
               oGdPictureImaging.TiffAddToMultiPageFile(TiffID, RasterPageID)
            End If
            oGdPictureImaging.ReleaseGdPictureImage(RasterPageID)
         Next
         oGdPictureImaging.TiffCloseMultiPageFile(TiffID)
         oGdPicturePDF.CloseDocument()
         MsgBox("Done!")
      Else
         MsgBox("can't open PDF")
      End If

Code: Select all

public Boolean ConvertPdf2Tiff(string sourceFile, string destinationFile, TiffCompression compressionType, string gdKey, int dpi)
        {
            Boolean response = false;

            GdPictureImaging oGdPictureImaging = new GdPictureImaging();
            GdPicturePDF oGdPicturePdf = new GdPicturePDF();
            LicenseManager oLicenseManager = new LicenseManager();
            int tiffID = 0;

            //set License Key
            oLicenseManager.RegisterKEY(gdKey);
            try
            {
                //check for error on loaded file
                if (oGdPicturePdf.LoadFromFile(sourceFile, false) == GdPictureStatus.OK)
                {
                    for (int i = 1; i <= oGdPicturePdf.GetPageCount(); i++)
                    {
                        oGdPicturePdf.SelectPage(i);
                        int rasterPageID = oGdPicturePdf.RenderPageToGdPictureImage(dpi, true);

                        oGdPictureImaging.ConvertTo1Bpp(rasterPageID);

                        if (i == 1)
                        {
                            tiffID = rasterPageID;
                            oGdPictureImaging.TiffSaveAsMultiPageFile(tiffID, destinationFile, compressionType);
                        }
                        else
                        {
                            oGdPictureImaging.TiffAddToMultiPageFile(tiffID, rasterPageID);
                        }
                        oGdPictureImaging.ReleaseGdPictureImage(rasterPageID);
                    }
                    response = true;
                }
                else
                {
                    response = false;
                }
            }
            catch (Exception ex)
            {
                response = false;
                throw;
            }
            finally
            {
                oGdPictureImaging.TiffCloseMultiPageFile(tiffID);
                oGdPicturePdf.CloseDocument();
            }
            return response;
        }