Rename file as shortcut / menu (feature request)

Hello, qpdfview is a wonderful viewer,

However, it is missing one important feature: I would like to be able to press a keyboard shortcut or menu item to rename the filename of the file I am currently viewing, preferably with a small pop-up floating window with only a textbox to enter the new file name and OK/cancel.

Could you please add this feature?

Regards,