[luatex] LuaTeX file almost 2.5x bigger

[Khaled Hosny]

On Sat, Jul 31, 2010 at 12:14:20PM +0200, Hans Hagen wrote:
> On 28-7-2010 12:55, Will Robertson wrote:
> >On 2010-07-26 06:04:19 +0930, Hans Hagen <pragma at wxs.nl> said:
> >
> >>For documents meant for reading from displays font expansion makes no
> >>sense anyway (actually, in print it also is somewhat debatable as
> >>abusing it makes things worse).
> >
> >Not sure I agree with you here (or I at least don't understand you).
> >Font expansion creates more readable paragraphs by producing lines with
> >smaller \badness -- surely that's an advantage even on screen? Where
> >does the nonsense come from? (Distorted glyphs? Reading PDF on screen in
> >the first place?)
> 
> Displacement (and scaling) are normally less that pixel differences.
> Differently scaled glyphs in successive lines might stand out more
> on screen. Maybe if we have > 600 dpi screens ...
> 
> Concerning the badness ... there is some wishful thinking involved I
> guess ... when hz was introduced in pdftex we did experiments at
> usergroup meetings (each participant got its own randomized copy so
> no shared experiences).

In case of Arabic (where there is no hyphenation, and the alternative
justification techniques are not implemented yet), I got ride of all the
overfull boxes in my document by enabling expansion alone, yet nobody
can notice it, which is good in my book.

Regards,
 Khaled

-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer