Export PDF using Format Specific Filter

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

Add a button control to the design view for exporting PDF.

Switch to the code view and add the following namespaces in the code view.

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

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

Add a PDF file to the project. In our case, we have used PDF file named DefaultDocument.pdf.

Initialize the instance of C1PDFDocumentSource class using the following code:

Dim pds As New C1PdfDocumentSource()

C1PdfDocumentSource pds = new C1PdfDocumentSource();

Load the PDf file into the object of C1PdfDocumentSource using the LoadFromFile method.

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

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

Add the following code to the button's click event to export the PDF to HTML format using HtmlFilter class.

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

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);
}

Export PDF using Format Specific Filter

To export PDF to HTML format

To export PDF to an image file format

See Also