No Issues found the solution./libs/cq/ui/widgets/source/widgets/form/PathField.js    There we need to change the Boolean of showTitlesInTree to False so that it can take the node name. By default it will be true.And also just FYI you shouldnt be changing that file under libs. you need to put it in /...

Hi , Is there detail way for this solution? I am also seeing this issue in my new aem 6.2 version. we used to use 5.6.1 and it shows the pdf name there. but in aem 6.2 it is showing the metadata tile name in the authoring dailog while hyperlinking