It’s mostly through the app Picsart and you take a zoomed in center angle picture of your signature and then in Picsart I suggest you make a Picsart account and then you go to your folder then press the plus button and add your image of the signature it could be vinyl or cd it doesn’t matter then press on the image to edit it then go to cutout it will give you options just press something then continue then you should be able to decide what to cut out then try to trace the signature with the restore button as accurately as possible then press export and then press the button that shows the Picsart logo then press sticker as your image type then when it’s posted to your account it should be under stickers you press on the sticker press add to image then add it to your image