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Resize A4 to SRA4 with Ghostscript

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  Resize A4 to SRA4 with Ghostscript Philippe Lang <philippe.lang72@gmail.com> - 2012-06-25 00:46 -0700
    Re: Resize A4 to SRA4 with Ghostscript Helge Blischke <h.blischke@acm.org> - 2012-06-25 13:41 +0200
      Re: Resize A4 to SRA4 with Ghostscript ken <ken@spamcop.net> - 2012-06-25 16:42 +0100

#760 — Resize A4 to SRA4 with Ghostscript

Hi,

I'm trying to use Ghostscript (v. 9.0.5) in order to resize A4
documents to the slightly bigger SRA4 format, used in the printing
industry.

The Ghostscript call ist the following:

gs -dPDFSETTINGS=/default -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite
-sOutputFile=output_file.pdf -dDEVICEWIDTHPOINTS=638 -
dDEVICEHEIGHTPOINTS=907
-dFIXEDMEDIA input_file.pdf

It works for some of the files I've been testing, but fails for
others: document size remains A4, no error, no warning.

One example of a file that fails is here: http://www.filejumbo.com/Download/9BA3BD62CEAB8F0E

Am I doing anything wrong or is that a bug in Ghostscript? Are there
other tools that would allow me to do this maybe?

Thanks,

Philippe

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#761

Philippe Lang wrote:

> Hi,
> 
> I'm trying to use Ghostscript (v. 9.0.5) in order to resize A4
> documents to the slightly bigger SRA4 format, used in the printing
> industry.
> 
> The Ghostscript call ist the following:
> 
> gs -dPDFSETTINGS=/default -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite
> -sOutputFile=output_file.pdf -dDEVICEWIDTHPOINTS=638 -
> dDEVICEHEIGHTPOINTS=907
> -dFIXEDMEDIA input_file.pdf
> 
> It works for some of the files I've been testing, but fails for
> others: document size remains A4, no error, no warning.
> 
> One example of a file that fails is here:
> http://www.filejumbo.com/Download/9BA3BD62CEAB8F0E
> 
> Am I doing anything wrong or is that a bug in Ghostscript? Are there
> other tools that would allow me to do this maybe?
> 
> Thanks,
> 
> Philippe

As Ghostscript does not fully implement the /Policies rules as described in 
the PLRM, your only chance is to intercept some of Ghostscript's pdf 
rendering operators (search around pdfshowpage in pdf_main.ps) and program 
the centering by yourself.

Helge

PS: Perhaps ken would know an eaiser way to do it?

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#766

In article <a4r12mFscsU1@mid.individual.net>, h.blischke@acm.org says...

> As Ghostscript does not fully implement the /Policies rules as 
described in 
> the PLRM, your only chance is to intercept some of Ghostscript's pdf 
> rendering operators (search around pdfshowpage in pdf_main.ps) and program 
> the centering by yourself.
> 
> Helge
> 
> PS: Perhaps ken would know an eaiser way to do it?

The actual issue is tracked here :

http://bugs.ghostscript.com/show_bug.cgi?id=693152

Its the presence of the CropBox which does it, not any Policies.


				Ken

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