[R] Reducing the size of pdf graphics files produced with R
sundar.dorai-raj at pdf.com
Tue May 22 19:19:51 CEST 2007
You need not buy Acrobat. There are two free software programs that will
compress pdf files:
http://www.cs.wisc.edu/~ghost/ (and in particular GSView)
They both allow several levels of compression.
Chabot Denis said the following on 5/22/2007 3:32 AM:
> Without trying to print 1000000 points (see <http://
> finzi.psych.upenn.edu/R/Rhelp02a/archive/42105.html>), I often print
> maps for which I do not want to loose too much of coastline detail,
> and/or plots with 1000-5000 points (yes, some are on top of each
> other, but using transparency (i.e. rgb colors with alpha
> information) this actually comes through as useful information.
> But the files are large (not as large as in the thread above of
> course, 800 KB to about 2 MB), especially when included in a LaTeX
> document by the dozen.
> Acrobat (not the reader, the full program) has an option "reduce file
> size". I don't know what it does, but it shrinks most of my plots to
> about 30% or original size, and I cannot detect any loss of detail
> even when zooming several times. But it is a pain to do this with
> Acrobat when you generate many plots... And you need to buy Acrobat.
> Is this something the pdf device could do in a future version? I
> tried the "million points" example from the thread above and the 55
> MB file was reduced to 6.9 MB, an even better shrinking I see on my
> usual plots.
> Denis Chabot
> R-help at stat.math.ethz.ch mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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