CopyrightInserter is an easy-to-use program that enables you to add watermarks to pictures located on any selected folder within your Mac; additionally, this efficient tool will allow you to transfer the resulted images onto other folders in order to keep the original ones intact.
An important advantage of using this application is the fact that it supports drag-and-drop action, a time-saving solution which comes in handy whenever you're in a hurry and you need to process folders faster.
However, all you need to do in order to use the program is to drag-and-drop the folder you wish to process, select the settings that best fit your needs (watermark position on image, resize coordinates, transparency level) and click the "Begin" button; afterwards, a new window will appear where you can preview the resulted images as they are processed. In just a few moments, you will have access to the newly modified pictures and you will be able to upload them onto your website or photo collage.
Finally, it's worth trying CopyrightInserter, as it offers a fast and easy way to add watermarks to folders filled with images.