If you're talking about creating a new image with your text overlaid you
probably should look at imagemagick. It gives you lots of control and
is great in scripts if you're doing bulk operations. An extensive set
of examples of how to use it do this can be found here:
> I am looking for annotation software (that will run on Red Hat 9) to be
> used in a classroom setting. Is anyone is using GIMP for this purpose?
> Is it possible to run GIMP as a transparent overlay for the purpose of
> annotating content displayed in underlying windows?
> Any help on this would be much appreciated.
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