Don’t think so…puddletag uses Mutagen to handle audio formats and it seems the chap that took over custodianship of Mutagen hasn’t yet implemented DSF support. Pity, as I understand it’s pretty much ID3, so from a coding perspective it shouldn’t require much effort.
Just saw that Mutagen has finally added DSF support, so it shouldn’t be long before puddletag handles DSF files also.
Puddletag now supports DSF, just finished testing 