Steve Kinney <> writes:

> If possible I would start over with a new signature and scan, at 300
> DPI or above, with black ink on white paper.

Scan in 'Lineart' settings, so you don't have shades of grey.

In the Gimp, set the mode to Color and proceed:

> Then, applying the filter Colors > Color to Alpha would produce a much
> more acceptable result. The more uniform the color and texture of the
> paper (or etc.) used, the more certain the result.

When downscaling the result, you'll get nice anti-aliasing based
on transparency. 

-- Johan
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