[NTG-pdftex] [ pdftex-Bugs-774 ] UniqueID in subsetted Type1 fonts

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Sun May 27 17:54:41 CEST 2007


Bugs item #774, was opened at 2007-04-15 23:20
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Category: Fonts
>Group: v1.40.3
Status: Open
>Resolution: Accepted
Priority: 5
Submitted By: Reinhard Kotucha (reinhard)
Assigned to: Hartmut Henkel (hhenkel)
Summary: UniqueID in subsetted Type1 fonts

Initial Comment:
The currant version of pdftex removes the UniqueID from
the font dictionary when a subset of a Type1 font is
included.  However, there is still a UniqueID in the
Private dictionary which should be removed too.

>From the PostScript Language Reference Manual (p. 336):

> When you copy a font dictionary for the purpose of 
> creating a modified font, you should not copy the 
> UniqueID or XUID entry. As an exception to this 
> general rule, it is acceptable (and preferable) to 
> retain the original UniqueID or XUID entry if
> the only modified entries are FontName, FontInfo, 
> FontMatrix, or Encoding, because those changes do not
> affect the glyphs’ appearance or metrics.

Regards,
  Reinhard

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