italic corrections on synthesized slanted lowercase Greek letters on the pdf device (was: Using -Tpdf rather than -Tps and then ps2pdf)

[G. Branden Robinson]

At 2023-06-13T17:15:56-0500, G. Branden Robinson wrote:
> I don't think we're _quite_ there, though; we need to contrive italic
> corrections too, which seems like it would be harder without a real
> font,[1] since they vary by glyph.  See the attachments.
[...]
> [1] Well, maybe not.  We can hand roll 24 italic corrections and pass
>     them as second arguments to this `pdf:SS` macro.  It can
>     interpolate them as \h'' horizontal motions after interpolating
>     `\$1`.  Might be a good idea to express the corrections in ems so
>     they'll scale on their own.

I undertook to do this.  Lacking experience as a real typographer, I did
things by eyeballing them with sample inputs that seemed likely
provocative of glyph collisions in mathematical typesetting, and by
limiting myself to adjustments in increments of 1/12th em.

Here is the result.  Really trying to not forget the attachments this
time.

Regards,
Branden

pdf.tmac.diff
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italic-greeks-uncorrected.pdf
Description: italic-greeks-uncorrected.pdf

italic-greeks-corrected.pdf
Description: italic-greeks-corrected.pdf

signature.asc
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