Bug#556867: cups-pdf: strong kerning errors

[Volker Behr]

On Wed, 2009-11-18 at 17:31 +0100, Dirk Vogt wrote:
> Hi,
> 
> > (the spots marked in the pngs look 1:1 the same as in the PDF on my screen)
> 
> I think that the pngs and pdf look the same IS the problem, and by the
> way logical, as the pngs are screen shots of the PDF viewer's output.
> 
> In  the PDFs and PNGs, a can see obvious problems concerning the kerning
> of the font:
>  
> example:
> 
> google.png: the first 'o' is way to near to the 'g' of google. Also
> between the 'g' and the 'l' in the word google is not enough space. 
> 

Ok, I checked that again - with Firefox (or any related browser) I get
exactly the kerning errors shown. With Opera the page looks just fine. I
remember in the past several issues with PostScript-Code generated by
Firefox.

This issue cannot be fixed by CUPS-PDF, since probably it is some
trouble with the original PostScript-Code (generated by Firefox). In
case it is an issue of the processing of this PS-code that has to be
fixed by GhostScript which is the utility CUPS-PDF employs internally to
convert PS to PDF.

Regards,
Volker





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Bug#556867: cups-pdf: strong kerning errors

[Volker Behr]

On Wed, 2009-11-18 at 01:05 +0100, Michael wrote:
> Package: cups-pdf
> Version: 2.5.0-12
> Severity: grave
> Tags: patch
> Justification: renders package unusable
> 
> I do not know, whether this is a CUPS-PDF bug or not, but at least the PDF 
> files created on my computer look horrible (also when printing them!).
> 
> See the files free.pdf and google.pdf printed out from Iceweasel (and the 
> three examples I marked in the pngs)
> 
> 
> -- System Information:
> Debian Release: squeeze/sid
>   APT prefers unstable
>   APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable')
> Architecture: amd64 (x86_64)
> 
> Kernel: Linux 2.6.31-6.slh.2-sidux-amd64 (SMP w/2 CPU cores; PREEMPT)
> Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash
> 
> Versions of packages cups-pdf depends on:
> ii  cups  1.4.1-5Common UNIX Printing System(tm) 
> - 
> ii  cups-client   1.4.1-5Common UNIX Printing System(tm) 
> - 
> ii  ghostscript   8.70~dfsg-2+b1 The GPL Ghostscript 
> PostScript/PDF
> ii  libc6 2.10.1-7   GNU C Library: Shared libraries
> ii  libpaper-utils1.1.23+nmu1library for handling paper 
> charact
> 
> cups-pdf recommends no packages.
> 
> Versions of packages cups-pdf suggests:
> ii  system-config-printer-kde 4:4.3.2-1  KDE 4 printer configuration 
> utilit
> 
> -- no debconf information

I viewed the two examples with evince, gv and acroread and failed to see
any issues (the spots marked in the pngs look 1:1 the same as in the PDF
on my screen) - my system is not Debian, so it might still be an issue
with Debian's viewers but the PDF themselves seem absolutely fine to me.

Regards,
Volker





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