I got this .png file which is completely transparent (except for the black lines) emailIcon
How can I turn the white color inside the mail icon to non-transparent but keep the parts outside ( in the corner, because of the rounded borders) transparent?
I'm using Illustrator 2015

1 Answer 1


First of all Illustrator is used for vector graphics, not raster which the PNG is.

I suggest you either edit the image in Photoshop instead or you trace the image with vectors in Illustrator and then add a white background polygon beneath the envelope outline. Export as PNG

  • that explains why I couldn't find the answer on google before - thanks - I'll try the tracing approach and as soon as I get it to work, I'll mark your answer as accepted :)
    – Cold_Class
    Commented Oct 30, 2016 at 11:36
  • If you don't have Photoshop, it's also a trivial task for ImageMagick or GraphicsMagick. Commented Oct 30, 2016 at 12:22
  • It's not quite working because after using "Object/ImageTrace/Make" it's not transparent at all anymore when I'm exporting it to PNG (even when I set "Background to Transparent there")
    – Cold_Class
    Commented Oct 30, 2016 at 12:40
  • When tracing images you can choose if white should be transparent or a white object. Delete the white objects and you'll be fine I think.
    – oskarlin
    Commented Oct 30, 2016 at 20:54

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