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Editorial Team
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Asked: 2026-06-04T06:09:46+00:00

I have a case where I need to combine two transparent layers on top

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I have a case where I need to combine two transparent layers on top of JPEG files.

Here a sample setup:

wget -O bg.jpg http://www.grahamowengallery.com/photography/Flowers/roadside-flowers.jpg
wget -O layer.png http://www2.picturepush.com/photo/a/6271450/640/TRANSPARENT-EMBELLISHMENTS/pink-flower-transparent-png.png
wget -O logo.png http://upload.wikimedia.org/wikipedia/commons/0/0d/Imagemagick-logo.png

I can get desired result with commands:

composite bg.jpg \( -compose Overlay layer.png \) bg2.jpg
composite bg2.jpg \( -compose Overlay logo.png \) result.jpg

This is good, but I want to avoid writing bg2.png to drive.

I tried:

composite bg.jpg \( -compose Overlay layer.png \) \( -compose Overlay logo.png \) result2.jpg

but this results on layer.png on black background. How can I fix this?

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1 Answer

  1. Editorial Team

    I couldn’t make composite working, but convert works:

    convert.exe bg.jpg layer.png -compose Overlay -composite logo.png -compose Overlay -composite result2.jpg

    Further reading: http://www.imagemagick.org/Usage/compose/

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