WORKS AS A REGULAR APPLICATION OR AS AN EXTENSION INSIDE APPLE PHOTOS: MarkerForPhotos offers you a dual mode. You can work as a standalone or directly bridge your application and works without leaving Apple Photos. You can add ONE or MULTIPLE Text(s) or Images(logos) with adjustable color/shadow/opacity. Powerful and Easy: ? Add multiple High-resolution Texts/Images/Watermarks to your photos, simply click and type or browse and select ? Several different Watermarks can be added to the same photo. ? Adjust Size/Opacity/Color/Font/Strokes/Shadows... ? Save the Watermark back on your image just right inside Photos! ? You do not use Photos, no problem it will work as a regular app. ? Online Manual for assistance. We stand behind our software, any question we are there to help and answer, please e-mail us.