PdfDocumentSource provides support for exporting a PDF file to an external format through Export method inherited from C1DocumentSource class.

To export PDF to HTML format

1. Add a button control to the design view for exporting PDF.
2. Switch to the code view and add the following namespaces in the code view.
   • Visual Basic
   • C#

   • Visual Basic

   Imports C1.WPF.Document
   Imports C1.WPF.Document.Export
   

   • C#

   using C1.WPF.Document;
   using C1.WPF.Document.Export;
   

3. Add a PDF file to the project. In our case, we have used PDF file named DefaultDocument.pdf.
4. Initialize the instance of C1PDFDocumentSource class using the following code:
   • Visual Basic
   • C#

   • Visual Basic

   Dim pds As New C1PdfDocumentSource()
   

   • C#

   C1PdfDocumentSource pds = new C1PdfDocumentSource();
   

5. Load the PDf file into the object of C1PdfDocumentSource using the LoadFromFile method.
   • Visual Basic
   • C#

   • Visual Basic

   pds.LoadFromFile("..\..\DefaultDocument.pdf")
   

   • C#

   pds.LoadFromFile(@"..\..\DefaultDocument.pdf");
   

6. Add the following code to the button's click event to export the PDF to HTML format using HtmlFilter class.
   
   • Visual Basic
   • C#

   • Visual Basic

   Try
           'Create HTMLFilter object
           Dim filter As New HtmlFilter()
           filter.ShowOptions = False
   
           'Open document after export
           filter.Preview = True
   
           'Set the output file name
           filter.FileName = "..\..\DefaultDocument.html"
   
           'Export PDF
           pds.Export(filter)
           MessageBox.Show(Me, "Document was successfully exported.", _
                           "Information", MessageBoxButton.OK, _
                           MessageBoxImage.Information)
   Catch ex As Exception
           MessageBox.Show(Me, ex.Message, "Error", MessageBoxButton.OK, _
                           MessageBoxImage.[Error])
   End Try
   

   • C#

   try
   {
       //Create HTMLFilter object
       HtmlFilter filter = new HtmlFilter();
       filter.ShowOptions = false;
   
       //Open document after export
       filter.Preview = true;
   
       //Set the output file name
       filter.FileName = @"..\..\DefaultDocument.html";
               
       //Export PDF
       pds.Export(filter);
       MessageBox.Show(this, "Document was successfully exported.",
                       "Information", MessageBoxButton.OK,
                       MessageBoxImage.Information);
   }
   catch (Exception ex)
   {
       MessageBox.Show(this, ex.Message, "Error",
                       MessageBoxButton.OK, MessageBoxImage.Error);
   }
   

To export PDF to an image file format

Similar code as above can be used for exporting a PDF document to a series of page image files in one of the supported image formats (JPEG, PNG, TIFF, etc.). It is also possible to create a single ZIP file containing the page images. The following code uses one of the image format filter class, JpegFilter, to export the multi-paged file to JPEG format and creates a single ZIP file of the exported images.

'Create JpegFilter object
Dim filter As New JpegFilter()
filter.UseZipForMultipleFiles = True
filter.ShowOptions = False

'Open document after export
filter.Preview = True

'Set the output file name
filter.FileName = "..\..\DefaultDocument.zip"

'Export PDF
pds.Export(filter)
MessageBox.Show(Me, "Document was successfully exported.", _
                "Information", MessageBoxButton.OK, _
                MessageBoxImage.Information)

   //Create JpegFilter object
   JpegFilter filter = new JpegFilter();
   filter.UseZipForMultipleFiles = true;
   filter.ShowOptions = false;

   //Open document after export
   filter.Preview = true;

   //Set the output file name
   filter.FileName = @"..\..\DefaultDocument.zip";
   
   //Export PDF
   pds.Export(filter);
   MessageBox.Show(this, "Document was successfully exported.",
                   "Information", MessageBoxButton.OK,
                   MessageBoxImage.Information);
}