/// <summary>
/// Converts a PDF document to conformance with PDF/A-1b specification.
/// </summary>
/// <param name="pdfFilename">The filename of source PDF document.</param>
/// <param name="outputPdfFilename">The filename of output PDF document.</param>
public static void ConvertDocumentToPdfA1b(string pdfFilename, string outputPdfFilename)
{
    // determine that file must converted to the PDF/A-1b and saved back to the source file
    bool sameFile = pdfFilename.ToUpperInvariant() == outputPdfFilename.ToUpperInvariant();
    
    // create the PDF/A-1b converter
    Vintasoft.Imaging.Pdf.Processing.PdfA.PdfA1bConverter converter = 
        new Vintasoft.Imaging.Pdf.Processing.PdfA.PdfA1bConverter();
    converter.LzwFixupCompression = Vintasoft.Imaging.Pdf.PdfCompression.Zip;
    // converter.OutputIntentDestIccProfile = ...
    
    // execute the conversion
    System.Console.WriteLine("Conversion...");
    Vintasoft.Imaging.Processing.ConversionProfileResult result = 
        converter.Convert(pdfFilename, outputPdfFilename, new Vintasoft.Imaging.Processing.ProcessingState());

    // if PDF document is converted successfully
    if (result.IsSuccessful)
    {
        System.Console.WriteLine("Document converted to PDF/A-1b.");
    }
    // if PDF document is NOT converted
    else
    {
        if (!sameFile)
            System.IO.File.Delete(outputPdfFilename);

        throw result.CreateProcessingException();
    }
}

''' <summary>
''' Converts a PDF document to conformance with PDF/A-1b specification.
''' </summary>
''' <param name="pdfFilename">The filename of source PDF document.</param>
''' <param name="outputPdfFilename">The filename of output PDF document.</param>
Public Shared Sub ConvertDocumentToPdfA1b(pdfFilename As String, outputPdfFilename As String)
    ' determine that file must converted to the PDF/A-1b and saved back to the source file
    Dim sameFile As Boolean = pdfFilename.ToUpperInvariant() = outputPdfFilename.ToUpperInvariant()

    ' create the PDF/A-1b converter
    Dim converter As New Vintasoft.Imaging.Pdf.Processing.PdfA.PdfA1bConverter()
    converter.LzwFixupCompression = Vintasoft.Imaging.Pdf.PdfCompression.Zip
    ' converter.OutputIntentDestIccProfile = ...

    ' execute the conversion
    System.Console.WriteLine("Conversion...")
    Dim result As Vintasoft.Imaging.Processing.ConversionProfileResult = converter.Convert(pdfFilename, outputPdfFilename, New Vintasoft.Imaging.Processing.ProcessingState())

    ' if PDF document is converted successfully
    If result.IsSuccessful Then
        System.Console.WriteLine("Document converted to PDF/A-1b.")
    Else
        ' if PDF document is NOT converted
        If Not sameFile Then
            System.IO.File.Delete(outputPdfFilename)
        End If

        Throw result.CreateProcessingException()
    End If
End Sub

/// <summary>
/// Converts a PDF document to conformance with PDF/A-1b specification and
/// shows the detailed result of conversion.
/// </summary>
/// <param name="pdfFilename">The filename of source PDF document.</param>
/// <param name="outputPdfFilename">The filename of output PDF document.</param>
public static void ConvertDocumentToPdfA1bDetalied(
    string pdfFilename,
    string outputPdfFilename)
{
    // determine that file must converted to the PDF/A-1b and saved back to the source file
    bool sameFile = pdfFilename.ToUpperInvariant() == outputPdfFilename.ToUpperInvariant();

    // create the PDF/A-1b converter
    Vintasoft.Imaging.Pdf.Processing.PdfA.PdfA1bConverter converter = 
        new Vintasoft.Imaging.Pdf.Processing.PdfA.PdfA1bConverter();
    converter.LzwFixupCompression = Vintasoft.Imaging.Pdf.PdfCompression.Zip;
    // converter.OutputIntentDestIccProfile = ...

    using (Vintasoft.Imaging.Processing.ProcessingState processingState = 
        new Vintasoft.Imaging.Processing.ProcessingState())
    {
        // subscribe to the events for monitoring the progress
        processingState.Progress += new System.EventHandler<Vintasoft.Imaging.ProgressEventArgs>(
            convertProcessingState_Progress);

        // execute the conversion
        Vintasoft.Imaging.Processing.ConversionProfileResult result = 
            converter.Convert(pdfFilename, outputPdfFilename, processingState);
        System.Console.WriteLine("finished.");

        // if PDF document is converted successfully
        if (result.IsSuccessful)
        {
            System.Console.WriteLine("Document converted to PDF/A-1b.");
        }
        // if PDF document is NOT converted
        else
        {
            if (!sameFile)
                System.IO.File.Delete(outputPdfFilename);

            System.Console.WriteLine("Cannot convert document to PDF/A-1b, unsolved problems:");
            // for each activated trigger
            foreach (Vintasoft.Imaging.Processing.IProcessingCommandInfo 
                command in result.ActivatedTriggers.Keys)
            {
                // output information about activated trigger
                System.Console.WriteLine(string.Format("  {0} ({1} matches)",
                    command,
                    result.ActivatedTriggers[command].Count));
            }
        }
    }
}

/// <summary>
/// Handles the Progress event of the ProcessingState.
/// </summary>
static void convertProcessingState_Progress(object sender, Vintasoft.Imaging.ProgressEventArgs e)
{
    System.Console.CursorLeft = 0;
    System.Console.Write(string.Format("Conversion {0}%...", e.Progress));
}

''' <summary>
''' Converts a PDF document to conformance with PDF/A-1b specification and
''' shows the detailed result of conversion.
''' </summary>
''' <param name="pdfFilename">The filename of source PDF document.</param>
''' <param name="outputPdfFilename">The filename of output PDF document.</param>
Public Shared Sub ConvertDocumentToPdfA1bDetalied(pdfFilename As String, outputPdfFilename As String)
    ' determine that file must converted to the PDF/A-1b and saved back to the source file
    Dim sameFile As Boolean = pdfFilename.ToUpperInvariant() = outputPdfFilename.ToUpperInvariant()

    ' create the PDF/A-1b converter
    Dim converter As New Vintasoft.Imaging.Pdf.Processing.PdfA.PdfA1bConverter()
    converter.LzwFixupCompression = Vintasoft.Imaging.Pdf.PdfCompression.Zip
    ' converter.OutputIntentDestIccProfile = ...

    Using processingState As New Vintasoft.Imaging.Processing.ProcessingState()
        ' subscribe to the events for monitoring the progress
        AddHandler processingState.Progress, New System.EventHandler(Of Vintasoft.Imaging.ProgressEventArgs)(AddressOf convertProcessingState_Progress)

        ' execute the conversion
        Dim result As Vintasoft.Imaging.Processing.ConversionProfileResult = converter.Convert(pdfFilename, outputPdfFilename, processingState)
        System.Console.WriteLine("finished.")

        ' if PDF document is converted successfully
        If result.IsSuccessful Then
            System.Console.WriteLine("Document converted to PDF/A-1b.")
        Else
            ' if PDF document is NOT converted
            If Not sameFile Then
                System.IO.File.Delete(outputPdfFilename)
            End If

            System.Console.WriteLine("Cannot convert document to PDF/A-1b, unsolved problems:")
            ' for each activated trigger
            For Each command As Vintasoft.Imaging.Processing.IProcessingCommandInfo In result.ActivatedTriggers.Keys
                ' output information about activated trigger
                System.Console.WriteLine(String.Format("  {0} ({1} matches)", command, result.ActivatedTriggers(command).Count))
            Next
        End If
    End Using
End Sub

''' <summary>
''' Handles the Progress event of the ProcessingState.
''' </summary>
Private Shared Sub convertProcessingState_Progress(sender As Object, e As Vintasoft.Imaging.ProgressEventArgs)
    System.Console.CursorLeft = 0
    System.Console.Write(String.Format("Conversion {0}%...", e.Progress))
End Sub