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From: Alex Schuster <wonko@wonkology.org>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] PDF: convert to grayscale
Date: Fri, 11 Feb 2011 22:08:28 +0100
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Grant Edwards writes:

> On 2011-02-08, Nuno J. Silva <nunojsilva@ist.utl.pt> wrote:
> > Does anyone know a tool (other than ghostscript) that is able to
> > convert a PDF (or postscript) to grayscale?
> > 
> > Ghostscript does this, but is unable to convert gradients and fills
> > (they're replaced by bitmaps) which results in a too big file unless I
> > drastically reduce quality.
> 
> I don't understand what you're asking for.  What sort of output format
> do you want (raster, vector, ???)?

I think he wants the same PDF as the original file. Only in grayscale.

This is one method to do this, but it needs Acrobat 8 Professional:
http://blog.gilbertconsulting.com/2007/05/convert-color-pdf-to-grayscale.html

	Wonko