Re: [ft-devel] Re: Unexpected Scaling

[Werner LEMBERG]

> > I've found an interesting thing - unexpected scaling for some
> > Type1(CID) (CFF) fonts. I use ftview for my investigation. I
> > compare font, which was unexpected scaling, (Times family) and
> > standard Times Type1 font (see UnexpScale.png) at 16 point. And
> > see approx. 2 times enlargement. Bad font I've attached too.
> > [badfont.dat, 9036 bytes]
> 
> I think this is fixed meanwhile.  The glyphs scale properly, but the
> values for the global bbox is wrong -- this is probably caused by
> the code which extracts the subfont from the original font, leaving
> the font dictionaries incomplete.  Can you verify that?

Just to be more precise, here the situation in this font:

  top dict: has bbox information, but for 2048 ppem, while the top
            font matrix is missing which implies 1000 ppem.

  subfont dict: has font matrix for 2048ppem

Compared to other, similar fonts, the bbox entry is incorrect: It
should be for 1000 ppem.


    Werner