[pdftex] Re: pdftex compression -- proposed addition to manual

Prof Brian D Ripley ripley at stats.ox.ac.uk
Sun Aug 26 10:00:53 CEST 2001


On Sat, 25 Aug 2001, Alan Shutko wrote:

> Reinhard Kotucha <reinhard at kammer.uni-hannover.de> writes:
>
> > I was amazed how small the pdf files were compared to the original
> > jpegs.  Here are the compression ratios I got:
>
> I know that some versions of GS downsample images when converting to
> PDF.  That would explain file-size savings, at the cost of image
> quality.

I have also seen some modest and few large compressions using lossless
gzip and bzip2 on jpeg files, and the large ones were on files produced by
digital cameras.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595




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