PhotoStamper is available for a free trial. You can use this application for evaluation purposes…
Screen Shots
PhotoStamper Settings is a Windows application that allows you to customize stamp appearance. It has an instant preview window and tabbed interface for various settings. This application can also be used to stamp individual files, group of files and entire folders.
PhotoStamper integrates into Windows Explorer, so you can always stamp your image files directly from Explorer window. Just right-click on the file and pop-up menu will show “PhotoStamper” section with three options: “Stamp”,”Undo Stamp” and “Settings”.
Just a sample datestamp.