Voilabits has released PhotoWatermark 3.0 (http://tinyurl.com/kwqfwsd), an update of the Mac OS X app that allows users to batch add a variety of personalized watermark to photos to avoid unauthorized copy, and promote brand identity. The app has been optimized for Mac OS X Yosemite.

PhotoWatermark offers a one-click feature to apply a watermark to several photos at once and to and customize your watermark (text, image, brand logo, etc.). It also lets you save your work to popular image formats and share it via Twitter and

PhotoWatermark is compatible with Mac OS X 10.7 and higher. A single license costs US$19.99; a license for five Macs is $39.99.