[R] reduce size of pdf

[ONKELINX, Thierry]

Dear Nevil,

Converting your pdf to png will be the most efficient way to reduce the
file size with scatter plots.

You can either export directly to pdf or first create a pdf and then use
ghostscript to convert it into png. I tend to the the latter because it
is easier to get plots with a consistent layout. The convertion can be
done within R. See the code below.

system("C:/Progra~1/gs/gs8.64/bin/gswin32 -r300 -dSAFER -dBATCH
-dNOPAUSE -sDEVICE=png16m -dGraphicsAlphaBits=4
-sOutputFile=fig_Power_Resid.png fig_Power_Resid.pdf")

HTH,

Thierry
------------------------------------------------------------------------
----
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek
team Biometrie & Kwaliteitszorg
Gaverstraat 4
9500 Geraardsbergen
Belgium

Research Institute for Nature and Forest
team Biometrics & Quality Assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium

tel. + 32 54/436 185
Thierry.Onkelinx op inbo.be
www.inbo.be

To call in the statistician after the experiment is done may be no more
than asking him to perform a post-mortem examination: he may be able to
say what the experiment died of.
~ Sir Ronald Aylmer Fisher

The plural of anecdote is not data.
~ Roger Brinner

The combination of some data and an aching desire for an answer does not
ensure that a reasonable answer can be extracted from a given body of
data.
~ John Tukey
  

> -----Oorspronkelijk bericht-----
> Van: r-help-bounces op r-project.org 
> [mailto:r-help-bounces op r-project.org] Namens Nevil Amos
> Verzonden: vrijdag 30 april 2010 1:37
> Aan: Greg Snow
> CC: r-help op r-project.org
> Onderwerp: Re: [R] reduce size of pdf
> 
> The file is a large number of scatterplot matrices (120pp of 4x4
> matrix)  the individual plots may have up to several hudred points.
> 
> I am already using the "useDingbats"  but the files are still 
> very large
> - I can reduce them about 50% in cute.pdf by changing the dpi 
> setting but it would be good to handle directly in R
> 
> They need to be screen/ draft print quality only not for publication.
> 
> They are being used to ciruclate to a number of people for discussion
> 
> 
> 
> 
> On 30/04/2010 2:20 AM, Greg Snow wrote:
> > It would help if we knew how big your pdf is and why it is 
> big.  Can you show an example or at least describe the 
> process used to generate the file and what you goals are in 
> creating/displaying the file?
> >
> >
> 
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> 

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