PDFVBASettings.DownsampleMono

Property DownsampleMono As Boolean

The DownsampleMono property determines whether monochrome bitmaps are downsampled for publishing to PDF. You can use the MonoResolution property to set the resolution.

The following code example publishes the active document to PDF. Color and grayscale bitmaps are downsampled to 72 dpi, and monochrome bitmaps are downsampled to 150 dpi.

Sub Test() 
 With ActiveDocument.PDFSettings 
  .DownsampleColor = True 
  .DownsampleGray = True 
  .DownsampleMono = True 
  .ColorResolution = 72 
  .GrayResolution = 72 
  .MonoResolution = 150 
 End With 
 ActiveDocument.PublishToPDF "C:\MyDocument.pdf" 
End Sub