Need a cheap and easy way to add a watermark to your photos or perform other batch edits? If you use a Mac, then I would urge you to check out PhotoBulk.
PhotoBulk is a simple photo editor that lets you perform three types of batch edits: Watermark, Bulk Resize, and Optimization. To get started, drag a group of photos to the small PhotoBulk window. It shows you how many photos you've added, and you can preview your photos by clicking on the eye-icon button on the right. To the left are three buttons for PhotoBulk's three editing functions. Click on one, and an edit panel slides out from the bottom of the PhotoBulk window. You can have all three edit panels extended; they each line up under the window.
To create a watermark, choose either text or image. If the latter, you can browse your Mac for an image to use. If the former, enter the text for your watermark in the area provided below the text/image toggle switch, and choose the font as well as its size and color. For either style of watermark, you can use the slider to adjust the opacity, then use the grid to choose where to position the watermark on your photos.
For the Bulk Resize, simply choose either width or height and enter the number of pixels you'd like for that dimension. PhotoBulk maintains the aspect ratio for your images as it adjusts to the new dimension you entered.
Finally, for the Optimization setting, you can choose to optimize for JPEG or PNG, or if you have a mix, you can choose to optimize for both file types. Though they are not listed as options for optimization, PhotoBulk also supports GIF, BMP, and TIFF file formats. After you have selected your file type preference, you can use the slider to adjust the intensity of the optimization effects.
As you make your tweaks in the above three areas, you can click the eye-icon button to get a real-time preview of your images. When you are satisfied with your work, click the green Start button, choose a destination, and PhotoBulk saves your photos.
When you start PhotoBulk again, you'll notice that it saves your settings from your previous edits. Unfortunately, you can't save multiple settings.