// choose a file
Var f as FolderItem = SpecialFolder.Desktop.Child("test.pdf")

// open it as PDF Document
Var sourceFile as New PDFDocumentMBS(f)

if sourceFile.handle <> 0 then // it is a PDF file
  
  // get upper bound of pages
  Var c as Integer = sourceFile.pageCount-1
  
  // from first to last page
  for n as Integer = 0 to c
    
    // pick that page
    Var page as PDFPageMBS = sourceFile.pageAtIndex(n)
    
    // render to image
    Var p as NSImageMBS = page.Render
    
    // and convert to RB picture and display
    Backdrop = p.CopyPictureWithMask
    
  next
  
end if