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Mit den folgenden Funktionen kann man mit Visual Basic .NET unter Verwendung der PDFCreator Library (Verweis!) PDF-Dateien drucken.

Die erste Funktion schickt dabei einfach alle gefundenen Dateien eines beliebigen Verzeichnisses an die Funktion "PrintPDFFile", welche letztendlich die PDF Datei erstellt.

 
Public Sub PrintDirectory(ByVal aSourceDirectory As String, ByVal aFileFilter As String)
 
    Dim lstFiles As System.Collections.ObjectModel.ReadOnlyCollection(Of String) = _
    My.Computer.FileSystem.GetFiles(aSourceDirectory, FileIO.SearchOption.SearchAllSubDirectories, aFileFilter)
 
    Dim fi As System.IO.FileInfo
    Dim fnnew As String
    Dim dirnew As String
 
    Dim pdfjob As New PDFCreator.clsPDFCreator
 
    If pdfjob.cStart("/NoProcessingAtStartup") = False Then
      MsgBox("Can't initialize PDFCreator.", vbCritical & vbOKOnly)
      Exit Sub
    End If
 
    For Each fn As String In lstFiles
      ' Create new filename
      fi = My.Computer.FileSystem.GetFileInfo(fn)
      fnnew = fi.Name
      fnnew = Replace(fnnew, fi.Extension, "") ' Remove old extension. Don't add new extension!
      dirnew = fi.Directory.FullName & "\"
 
      Me.PDFPrintFile(pdfjob, fi.FullName, fnnew, dirnew)
    Next
 
    pdfjob.cClose()
    pdfjob = Nothing
  End Sub
 

 
  Public Sub PDFPrintFile(ByRef aPDFJob As PDFCreator.clsPDFCreator, ByVal aFilename As String, ByVal aOutputFilename As String, ByVal aOutputPath As String)
 
    ' Exit it output filename already exists
    If System.IO.File.Exists(aOutputPath & aOutputFilename) Then
      Exit Sub
    End If
 
    ' Create Outputdirectory if not existant
    If Not System.IO.Directory.Exists(aOutputPath) Then
      System.IO.Directory.CreateDirectory(aOutputPath)
    End If
 
    With aPDFJob
      .cOption("UseAutosave") = 1
      .cOption("UseAutosaveDirectory") = 1
      .cOption("AutosaveDirectory") = aOutputPath
      .cOption("AutosaveFilename") = aOutputFilename
      .cOption("AutosaveFormat") = 0    ' 0 = PDF
      .cClearCache()
    End With
 
    'Print the document to PDF
    aPDFJob.cPrintFile(aFilename)
 
    'Wait until the print job has entered the print queue
    Do Until aPDFJob.cCountOfPrintjobs = 1
      ' My.Application.DoEvents.DoEvents()
    Loop
 
    aPDFJob.cPrinterStop = False
 
    'Wait until PDF creator is finished then release the objects
    Do Until aPDFJob.cCountOfPrintjobs = 0
      ' My.Application.DoEvents()
    Loop
 
  End Sub
 

Aktualisierung vom 03.08.2009:

Wie ich heute leider mal wieder feststellen musste, funktioniert obiger Code bei einer großen Menge an umzuwandelnden Dateien nicht sonderlich.

Das unten aufgeführte "Modul" hat bei mir soeben 1400 Word-Dokumente erfolgreich in PDF umgenwandelt.

Public Module modPrintPDF
 
  Public Sub Main()
 
    Dim strDir As String = "C:\Word\Serienbriefe\Einzelbriefe"
    PrintDirectoryPDF(strDir, "*.doc", strDir)
 
  End Sub
 
  Public Function PrintDirectoryPDF(ByVal aInputDirectory As String, ByVal aFilter As String, ByVal aOutputDirectory As String)
 
    Dim lstFiles As System.Collections.ObjectModel.ReadOnlyCollection(Of String) = _
    My.Computer.FileSystem.GetFiles(aInputDirectory, FileIO.SearchOption.SearchAllSubDirectories, aFilter)
 
    Dim pdfc As New PDFCreator.clsPDFCreator
    pdfc.cStart(, True)
 
    For Each fn As String In lstFiles
 
      ' Generate New Filename
      Dim fi As New IO.FileInfo(fn)
      Dim strNewFilename As String = fi.Name
      strNewFilename = Replace(strNewFilename, fi.Extension, ".pdf")
 
      ' Print File
      PrintPDF(pdfc, fn, aOutputDirectory, strNewFilename)
    Next
 
    Return True
 
  End Function
 
  Public Function PrintPDF(ByRef aPDFCreator As PDFCreator.clsPDFCreator, ByVal aPDFFile As String, ByVal aOutputPath As String, ByVal aOutputFilename As String) As Integer
 
    With aPDFCreator
      .cOption("UseAutosave") = 1
      .cOption("UseAutosaveDirectory") = 1
      .cOption("AutosaveFormat") = 0 ' 0 = PDF
      .cOption("AutosaveDirectory") = aOutputPath
      .cOption("AutosaveFilename") = aOutputFilename
      .cClearCache()
      .cPrintFile(aPDFFile)
    End With
 
  End Function
 
End Module
 

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