[tex-live] tl2018: problems with including a (very specific) PNG file
nospam-abuse at ilyaz.org
Wed Jul 4 19:03:55 CEST 2018
On Sun, Jun 24, 2018 at 09:50:47PM +0000, Karl Berry wrote:
> The attached files build ���fine��� with tl2009, but produce a very bad
> result with tl2018.
> I don't get any difference in the output between 2009 and today (on
> x86-linux), but anyway, whatever is going on I believe is in the LaTeX
> drivers rather than the pdftex binary, because it worked normally with
> plain pdftex. So I posted here:
A lot of thanks!
> I surmise a workaround could be to open/save the png, or run through
> pngtopnm|pnmtopng, or whatever, since clearly that particular png is
> indeed "unusual". --best, karl.
Unfortunately, no. This file is freshly generated by ImageMagick��s
convert. This unfortunate property survives all the conversions���
[ However, the file this image was ���convert���ed from may be indeed
problematic. It dates from the time of emTeX, which supported
only, essentially, .PCX. At the time, since (my?) graphing
infrastructure was in infancy only, a wrong DPI value may have
easily crept in. ]
Anyway, it is hours lost in debugging���镡�����and, apparently, not much can
be improved here��� A pity!
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