On 4/21/2013 1:28 PM, Michael Friendly wrote:
[Env: OS: Win Xp; R 2.15.2; IDE: eclipse/StatET]
Each time I update my heplots package, I get warnings from R CMD check
on R-Forge,
* checking sizes of PDF files under ‘inst/doc’ ... WARNING
‘gs+qpdf’ made some significant size reductions:
compacted ‘HE-examples.pdf’ from 739Kb to 366Kb
To follow up my own post, I did some more checking of whether/how to
compact PDFs on my own system. My conclusion is that that I am unable
to comply with the request from CRAN maintainers, even though I would
like to. Once again, I wonder why this cannot be handled on the CRAN
side automatically.
qpdf: running it from a cmd prompt (using the options from
tools::compactPDF) doesn't do very much compression
C:\R\test>qpdf --stream-data=compress --object-streams=generate
HE-examples.pdf
HE-examples-comp.pdf
C:\R\test>dir HE-examples*
04/22/2013 10:55 AM 699,191 HE-examples-comp.pdf
04/22/2013 10:28 AM 756,624 HE-examples.pdf
gs: I have gs installed at C:\Program Files\gs\gs9.07\bin\gswin32.exe,
but the gs installer doesn't put itself on the path, so
tools::compactPDF sees gs_cmd as empty:
> gs_cmd = Sys.getenv("R_GSCMD", "")
[1] ""
so it can't run gs+qpdf. OK, so I try to do it manually:
> Sys.setenv(R_GSCMD = "C:/Program Files/gs/gs9.07/bin/gswin32.exe")
> setwd("test")
>
> tools::compactPDF("HE-examples.pdf")
> tools::compactPDF("HE-examples.pdf", gs_quality="ebook")
But this doesn't do anything, not even changing the timestamp on the
file, because the file size doesn't change enough.
C:\R\test>dir HE-examples.pdf
04/22/2013 10:28 AM 756,624 HE-examples.pdf
--
Michael Friendly Email: friendly AT yorku DOT ca
Professor, Psychology Dept. & Chair, Quantitative Methods
York University Voice: 416 736-2100 x66249 Fax: 416 736-5814
4700 Keele Street Web: http://www.datavis.ca
Toronto, ONT M3J 1P3 CANADA
______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
