Is there an easy way to get transparent plots that work with
Save Graphic As using a compatible file format such as GIF or PNG? I tried
Background->None, yet the exported PNGs appear to still have a white background.
Instead of using
Save Image As... you can use the
Export command, like this:
Export["transparent.png", Graphics[Circle], Background -> None]
For this to work it is important that
Background -> None is also set inside
Graphics. This is the default though so unless you changed it, it should be fine.
Similarly, to convert to an image with alpha channels, use
Rasterize[Graphics[Circle], "Image", Background -> None]
The output of this can be saved even using
Save Image As..., but this effort needed is the same because of the