Downsize: Resize, Watermark, Frame
Looking for a quick solution to resize, frame, and watermark your freshly taken pictures? Downsize might just be what you need. This little application integrates perfectly with iPhoto, allowing you to browse all your iPhoto lists, folders, and rolls straight from the application's interface.
To resize an image, simply select the desired number of pixels and use the slider to adjust the image quality. The ability to tweak frames on pictures is a standout feature. You can select thickness, color, corner radius, and even adjust the shadow.
Similarly, Downsize allows you to apply a watermark to any area of your picture, although it seems that text can only be placed on one line. You can control the watermark's opacity via a slider. The preview window allows you to check the changes you've made to your image at any time.
Downsize is not highly advanced, but if you want to resize, frame, and quickly watermark a picture, it should be what you're looking for.