Merge branch 'develop_PDFReaderProV4.6.1' of git.kdan.cc:Mac_PDF/PDF_Office into develop_PDFReaderProV4.6.1

PDF Office/PDF Master/Class/PDFWindowController/Side/LeftSide/Thumbnail/Base/KMPDFThumbViewBaseController.swift

@@ -593,7 +593,7 @@ class KMPDFThumbViewBaseController: KMBaseViewController {
             guard let page = self.thumbnailView.document?.page(at: UInt(indexpath.item)).copy() as? CPDFPage else {
                 continue
             }
-            
+            KMThumbnailManager.manager.copyDocument = self.thumbnailView.document
             KMThumbnailManager.manager.copyPages.append(page)
         }
         

PDF Office/PDF Master/Class/PDFWindowController/Side/LeftSide/Thumbnail/Manager/KMThumbnailManager.swift

@@ -14,6 +14,8 @@ class KMThumbnailManager: NSObject {
     
     var copyPages: [CPDFPage] = []
     
+    var copyDocument: CPDFDocument?
+    
     var tempCopyFilePath: String {
         get {
             let floderPath = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.applicationSupportDirectory, FileManager.SearchPathDomainMask.userDomainMask, true).last?.stringByAppendingPathComponent(Bundle.main.bundleIdentifier!).stringByAppendingPathComponent("KMPDFThumbnailViewCropTemp")