From: Robert Roebling (Robert.Roebling@t-online.de)
Date: Sun Jan 26 2003 - 16:54:44 EST
Leonard Rosenthol wrote:
> >Well, we do :-) I just tell the FreeType backend
> >of Pango to produce outlines of the rendered
> >text and write these to the PS file.
>
> 1) The "printer" is no longer able to using the
> hinting data in the font to do better quality
> output on raster devices and/or lower resolution
> PS printers.
How much of a reality is that? I use this for printing
on Linux with ghostscript. I haven't even seen a printer
which does less than 300dpi and most do far more. I'm
also not sure what rendering engine GhostSript uses, but
I'm not sure it is so much better than FreeType's and
that is what Pango uses to create the outlines.
> 2) If the user chooses to take the output PS file
> and convert it to PDF
I admit that this is a drawback. But I currently
aim at printing, the rest is secondary.
> As Dom noted, the correct thing to do is support
> font embedding with subsetting.
I didn't find any info on this yet, but doesn't
that mean that the printing code has to scan the
whole printout which glyphs have been used and
it will then dump all those glyphs into the PS
file? I am particularly concerned about the order
of things as I suspect that the glyph data has
to be at the top of the PS file and the actual
text comes later. BTW, does AbiWord do this
glyph subsetting?
I am still undecided on what the best approach
is, but it strikes me as stupid that so many
Linux projects waste time on writing yet
another variant combining Xft, FriBidi and
PS with subsetting. I think Linux would look
(well, print) better with a PangoPS library.
Regards,
Robert
-- Robert Roebling, MD <robert.roebling@medizin.uni-ulm.de>
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