1. Search and download Quick Help in Apple appstore, then open Quick Help and add Signature Camera to Quick Help Library. 2. Then click Run Signature Camera. After that, you can "take a picture" or "select a picture in the album" and then prompt for signature. 3. After the signature is made, the picture editing interface will pop up, where the designed signature will appear. You can select, zoom, move and so on. Sign your name in the right place with your finger. 4. Finally, click Finish, and a signed photo will be saved in the album, which is equivalent to adding a watermark to the photo. Shortcut commands allow you to use the application to quickly complete tasks, just tap or ask Siri. Shortcut instructions can automatically perform various tasks, such as getting the route of the next schedule in the calendar, moving text from one application to another, generating expense reports, and so on.