【综合】分享原始加密文档crash

PDF Office/PDF Master/Class/PDFWindowController/ViewController/KMMainViewController+Action.swift

@@ -2245,6 +2245,18 @@ extension KMMainViewController {
         }
     }
     @objc private func shareOriginalPDF(sender:KMToolbarViewController, limit: Bool = false) {
+        guard let pdfDoc = self.listView.document else {
+            NSSound.beep()
+            return
+        }
+        if !pdfDoc.allowsCopying || !pdfDoc.allowsPrinting {
+            let alert = NSAlert()
+            alert.alertStyle = .critical
+            alert.messageText = NSLocalizedString("This is a secured document. Editing is not permitted.", comment: "")
+            alert.runModal()
+            return
+        }
+        
         if (limit) {
             let document = self.listView.document ?? CPDFDocument()
             var path: String?
@@ -2264,8 +2276,8 @@ extension KMMainViewController {
                 return;
             }
             let newDocument = CPDFDocument(url: URL(fileURLWithPath: path ?? ""))
-            
-            for i in 0 ... (newDocument?.pageCount ?? 1)-1 {
+            let cnt = newDocument?.pageCount ?? 0
+            for i in 0 ..< cnt {
                 let page = newDocument?.page(at: i)
                 var annotations : [CPDFAnnotation] = []
                 for annotation in page!.annotations {
@@ -2305,7 +2317,8 @@ extension KMMainViewController {
         }
         let newDocument = CPDFDocument(url: URL(fileURLWithPath: path ?? ""))
         
-        for i in 0 ... (newDocument?.pageCount ?? 1)-1 {
+        let cnt = newDocument?.pageCount ?? 0
+        for i in 0 ..< cnt {
             let page = newDocument!.page(at: i)
             var annotations : [CPDFAnnotation] = []
             for annotation in page!.annotations {