There is an easy solution that does not require Perl: ImageMagick.

It's a command line tool for lots of image processing tasks (there is a wrapper module in CPAN also, if you'd still prefer using perl).

In particular, it has a "-draw" command that lets you add text labels to images: http://www.imagemagick.org/script/command-line-options.php#draw

In reply to Re: GD + layering text over existing image by bruno
in thread GD + layering text over existing image by ultranerds

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