[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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