To add a text string onto a set of images you can use
FastStone Image Viwer (FSIV) or FastStone Photo Resizer (FSPR)
http://www.faststone.org/
1.Start up FastStone Image Viwer
2.Go to the folder/directory with the images you want
to add a text string on
3.Mark the images (Ctrl A = select all)
4.Go to the menu "Tools" and click on "Batch Image Convert/Rename"
5.Activate/tick the option "use Advance option"
6,Click on button "Advanced Options"
7.Go to the tab "Text" and activate/tick "Use Text"
8.Add the text
9.Click "Ok"
10.Choose the output file format and then click on the "Settings" button
to modify the file format settings (like quality/compression)
11.Choose the output folder/directory
12.Click on the "Start" button
1.Start up FastStone Photo Resizer
2.Go to the folder/directory with the images you want
to add a text string on
3.Mark the images you want to change, click on the "Add" button
(you can also click on the "Add all" button if you want to change
all the images in that directory)
4.Activate/tick the option "use Advance option"
5.Click on button "Advanced Options"
6.Go to the tab "Text" and activate/tick "Use Text"
7.Add the text
8.Click "Ok"
9.Choose the output file format and then click on the "Settings" button
to modify the file format settings (like quality/compression)
10.Choose the output folder/directory
10.Click on the "Start" button