Thanks Jacob,
I downloaded the trial version. To be honest I can't figure it out. Why do I 
need to compare the results of the Ghostscript and Distiller? None seem to give 
a proper result in the first place. I need to know how to add data to the 
Ghostscript config file that would either remove the XUIDs or not embed them 
into the final PDF. I don't know how to do it for Distiller at all and for 
Ghostscript it seems possible.
I completely agree we should not be using these IDs at all, but as of right 
now, majority of my fonts do have them and this causes problems.


> Date: Wed, 24 Oct 2007 23:57:01 +0200
> From: js at
> To: biozaichenko at; framers at
> On 04 mar 2005 Thomas Phinney of Adobe wrote a public notice regarding this 
> issue(
> <snip>
> Neither Type 1 nor OpenType CFF fonts require PostScript UniqueIDs. 
> Back in the mid-80s, when printing might be done on a 57K serial connection 
> and printers might have 8 MHz processors, the caching of device-generated 
> bitmaps enabled by UniqueIDs made a noticeable speed difference. With today's 
> connection bandwidths and printers, the printing speed difference was 
> insignificant in our tests (conducted around 2002), and certainly not enough 
> to outweigh the risks of collisions between UniqueIDs for different fonts and 
> the trouble of tracking the ID numbers. 
> For these reasons, Adobe stopped using UniqueIDs (and XUIDs) in our own 
> OpenType CFF fonts. If we still made Type 1 fonts, we wouldn't use UniqueIDs 
> for them, either. 
> You may of course continue to use UniqueIDs, it's just that they are not 
> necessary. 
> </snip>
> I personally would like this message to be confirmed by other Adobe 
> representatives, since it's in clear conflict with most PostScript tech docs 
> provided by Adobe.
> Anyway, I don't believe that Ghostscript will add anything new though newer 
> GS versions implement improved UniqueID and XUID handling. However, you can 
> test for yourself and easily compare the results of Adobe Distiller (5.X to 
> 8.X) and GPL Ghostscript 8.60 if you try our Grafikhuset Publi PDF 
> superstructure software. Using Grafikhuset Publi PDF as an umbrella for 'PDF 
> creation' you can set up 2 identical queues, one using Adobe Distiller and 
> one using Ghostscript, print to these queues and then compare the PDF results 
> in post-production.
> The Grafikhuset Publi PDF trial version is fully functional for 30 days. 
> Please see for product details and 
> if you want to download and 
> test it.
> Best regards / Med venlig hilsen
> Jacob Sch?ffer  |  Chief Developer
> Grafikhuset (House of Graphics)
> Paradis All? 22, Raml?se
> DK-3200 Helsinge, Denmark
> Phone: +45 4439 4400
> Email: js at
> Web:
> > -----Oprindelig meddelelse-----
> > Fra: at
> > [ at
> > ] P? vegne af Michael Zaichenko
> > Sendt: 24. oktober 2007 17:22
> > Til: FrameUsers Users
> >
> >
> > Hello Framers,
> > This might be slightly OT but here is the issue. I'm PDFing
> > my Frame files with Distiller 6.0. Now and then my publisher
> > comes up with font issues - certain fonts come out wrongly
> > like bold comes out as bold ital or small caps comes out as
> > bold small caps, etc. Tracing it back I narrowed it down to
> > fonts having identical XUIDs. Now, I can of course go ahead
> > and remove IDs on all fonts but this would be a tedious task
> > - I have over 5000 fonts library plus this doesn't seem to be
> > the right solution as in couple instances it didn't help
> > either. My publisher is using Docuprint machines and doesn't
> > have much options of changing fonts there. I'm trying PDF995
> > now and it seems like I have more control over the PDF
> > process with a postscript language. I don't know much of
> > Ghostscript at all - it was barely enough to change the
> > compression method for the images, however it should be
> > possible to remove XUIDs at PDFing step but how? I found a
> > piece of a script that does something with XUIDs but this
> > didn't seem to work at all - the PDF just wouldn't get created.
> >
> > The file I'm editing is called - it's part of the
> > pdf995 package.
> >
> > Please HELP.
> >
> > Michael
> >
> > P.S. I tried a lot of things in the attempt to solve it to no
> > avail. Please do not suggest any other handling - I tried
> > them all (sad but true...). I only would like to know how to
> > remove XUID when my file gets created.
> >
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