We're off topic here, but in pyvips (for example) you can do text overlays like this: https://github.com/libvips/pyvips/blob/master/examples/annotate-animation

We're off topic here, but in pyvips (for example) you can do text overlays like this: https://github.com/libvips/pyvips/blob/master/examples/annotate-animation.py https://github.com/libvips/pyvips/blob/master/examples/annot... tldr: make an image containing your text, composite it over the image you want to annotate.