+ from_utf8(filename.absFileName())));
+ return false;
+ }
+
+ // LinkBack files look like PDF, but have the .linkback extension
+ string const ext = getExtension(filename.absFileName());
+ if (format_name == "pdf" && ext == "linkback") {
+#ifdef USE_MACOSX_PACKAGING
+ return editLinkBackFile(filename.absFileName().c_str());
+#else
+ Alert::error(_("Cannot edit file"),
+ _("LinkBack files can only be edited on Apple Mac OSX."));