Add transparency to an existing PNG


Question

I'd like to use this image on a web site.

enter image description here

What I need to do is change the background from black to transparent, so I can use the arrow on my site maintaining the page background.

I used Gimp to convert the image to .png, but how do I proceed now?

1
64
3/15/2016 8:17:00 AM

Accepted Answer

GIMP's Color to Alpha tool is very handy if you know how to use it, and this task seems particularly well suited for it:

  1. Open the image in GIMP, and change it to RGB color mode if necessary.
  2. Select Layer → Transparency → Color to Alpha...
  3. Select black (#000000) as the color to make transparent.
  4. Click "OK".
  5. Save the resulting image in PNG format:
    Image with transparency
74
4/13/2017 12:46:00 PM

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