View difference between Paste ID: 7TmXmwJb and fiMfptDK

 abstract class PDF (val fileName:String){
   import SPDF._
 
-  val document: ValDocument
+  def document: ValDocument
 //  lazy val document = _document
 
-    val document = documentPDF(fileName)
+
     def document = documentPDF(fileName)
   }
-  lazy val documentInfo    = document              ∘ (_.getDocumentInformation)
+
-  lazy val documentCatalog = document              ∘ (_.getDocumentCatalog)
+  lazy val documentInfo = document ∘ (_.getDocumentInformation)
-  lazy val numberOfPages   = document              ∘ (_.getNumberOfPages)
+  lazy val documentCatalog = document ∘ (_.getDocumentCatalog)
-  lazy val title           = documentInfo.toOption ∘ (_.getTitle()) | "Unknow"
+  lazy val numberOfPages = document ∘ (_.getNumberOfPages)
-  lazy val allPages        = documentCatalog       ∘ (_.getAllPages())
+  lazy val title = documentInfo.toOption ∘ (_.getTitle()) | "Unknow"
   lazy val allPages = documentCatalog ∘ (_.getAllPages())
 
   def close:PDF = {
     val d = document
-      val document:ValDocument = d flatMap closePDF
+
       def document:ValDocument = document flatMap closePDF
     }
   }
 
   def getPage(o:PDOutlineItem):Int =
     document.doOrElse((d) => getPage(o.findDestinationPage(d)))(-1)
 
   def getPage(p:PDPage):Int = allPages.toOption ∘ (_.indexOf(p)) | -1
 }