Joke Collection Website - Joke collection - Please help me turn this photo into an inch photo with a light blue background and remove it by hand. Urgent need for exams

Please help me turn this photo into an inch photo with a light blue background and remove it by hand. Urgent need for exams

The software' certificate star' is made directly from the certificate photo. There are various commonly used photo size templates in the specification setting, including 1 inch and 2 inch. Just click cut. Click Background Processing in the toolbar, and then click blue in the color area below the background replacement box.

The system is automatic matting.