Best delete functions in industry: Del key (to Recycle Bin or permanent), X-key to tag, then Ctrl+X to delete in batch.Sort by folder & file name, or by date, forward or reverse (F3 key).True full-screen mode (F10 key removes gadgets, F11 maximizes the view, F12 removes the taskbar: 100% full screen).Full support for 4K & 5K monitors and beyond (perfect scaling,.Ever: point FastPictureViewer Professional at your image's folder and start reviewing, culling and rating within seconds, in RAW or JPEG format, be it 10 images or 10,000: no wait.