[Giveaway] Mass Watermark. Mass Watermark is a photo watermarking and post-processing software that has been designed to process hundreds of images with a few mouse clicks and within minutes.
In addition to watermarking there are options for Batch/ Individual resizing, cropping, optimizing, editing EXIF Data and more.
After you finish processing you will have the ability to directly export the watermarked images to your Picasa/ Flickr albums. You may add photos to existing albums or create new albums with custom properties.