You can use Boxoft Batch Photo Processor to add kinds of watermark to picture. it provides date, text and image watermark for diffrent purpose. if you want to tounch photo up, you can also use this program.
More detals follow below easy steps:
Launch it by double clicking its desktop icon, add some aim pictures;
On the left-right box, click "Annotate", choose a watermark effects, such as date;
According to prompt, click green arrows towards the right to start editing picture;
On the text form, input self-defined words, and others forms for color, text style, size, opacity, placement, rotation degree and so on;