多页签 - 修复开启多个文档后，在文档中加入注释，直接关闭，不会走保存逻辑

PDF Office/PDF Master/Class/Document/KMMainDocument.swift

@@ -199,7 +199,8 @@ typealias KMMainDocumentCloudUploadHanddler = (@escaping(Bool, String)->()) -> (
         NotificationCenter.default.addObserver(self, selector: #selector(pdfChangedNotification(_:)), name: NSNotification.Name.init(rawValue: "CPDFListViewAnnotationsAttributeHasChangeNotification"), object: nil)
 //        NotificationCenter.default.addObserver(self, selector: #selector(pdfChangedNotification(_:)), name: NSNotification.Name.init(rawValue: "CPDFViewDocumentChangedNotification"), object: nil)
 //        NotificationCenter.default.addObserver(self, selector: #selector(pdfChangedNotification(_:)), name: NSNotification.Name.init(rawValue: "CPDFViewPageChangedNotification"), object: nil)
-
+        NotificationCenter.default.addObserver(self, selector: #selector(pdfChangedNotification(_:)), name: NSNotification.Name.init(rawValue: "CPDFListViewDidAddAnnotationNotification"), object: nil)
+        NotificationCenter.default.addObserver(self, selector: #selector(pdfChangedNotification(_:)), name: NSNotification.Name.init(rawValue: "CPDFListViewDidRemoveAnnotationNotification"), object: nil)
     }
 
     override init?(baseTabContents baseContents: CTTabContents?) {