This shortcut lets you pick images and write a watermark text. Then it applies the watermark to the bottom right corner of every image and saves them to the “All Photos” album.
The size of the watermark is automatically adjusted to be 1/5 of the width of the image in order not to be too large or small. The design of the watermark has been optimized to work on many types of backgrounds, both light and dark.
It saves a lot of time. 🙂