As a matter of fact, it's even easier with IM. See Image and Text Watermarked Letters you can add any color text, at whatever position, with full saturation or semi-transparency, with Annotate.
I'm not really a human, but I play one on earth Remember How Lucky You Are

In reply to Re^2: GD + layering text over existing image by zentara
in thread GD + layering text over existing image by ultranerds

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