[pdftex] Font (embedding) problem

Thanh Han The hanthethanh at gmail.com
Sun Apr 1 21:41:04 CEST 2007

On Mon, Mar 26, 2007 at 03:15:54PM -0400, James Cloos wrote:
> Thierry> I remember vaguely that distiller removed UniqueIDs so as
> Thierry> to disable font cacheing, maybe does ghostscript something
> Thierry> similar?
> Adobe reps have written that Adobe considers UniqueIDs essentially
> deprecated.  As I recall, their RIPs ignore them and they stopped
> including them in new fonts.  (Of course, they have since moved to
> otf fonts.)

I can confirm this. Adobe consider UniqueID obsolete now.
When I asked for a range of UniqueID numbers, I got this

| Dear Thanh,
| We (Adobe) now state that you no longer need the font ID numbers The only
| software that used them was PostScript interpreters - they still "use" them,
| but they no longer give a performance advantage. Here's a statement from our
| font department:

> So, pdftex should drop the UniqueID when embedding fonts.

pdftex is doing this (see writet1.c)


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