Three buttons sit directly under the card preview on /pokemon-trainer-card-maker: Download PNG, Copy image, and Reset. Each one acts on the whole card.
Step 1
Click Copy image to put a PNG of the card on your clipboard. The button label flips to Copied! for about two seconds on success. Paste the image into a chat, doc, or image editor.
Step 2
If your browser blocks the Clipboard API, the button falls back to Download PNG automatically so you never lose the image.
Step 3
Click Reset to return every field to defaults. A browser confirmation prompt appears first so you cannot wipe the card by accident.