+#define errHighlightFile 5 // nonexistent or invalid highlight file
+
+#define errBadPrinter 6 // invalid printer
+
+#define errPrinting 7 // error during printing
+
+#define errPermission 8 // PDF file doesn't allow that operation
+
+#define errBadPageNum 9 // invalid page number
+
+#define errFileIO 10 // file I/O error
+