[R] consider running tools::compactPDF(gs_quality = "ebook")

[Bert Gunter]

I believe R-package-devel is the right place to post this, not r-help. See
https://www.r-project.org/mail.html  for details.

Cheers,
Bert



Bert Gunter

"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )

On Sun, Jul 8, 2018 at 1:41 AM, Søren Højsgaard <sorenh using math.aau.dk> wrote:

> Dear all,
>
> I run
>
> R CMD build --compact-vignettes="both"  gRbase
>
> and/or
>
> R CMD build --compact-vignettes="gs+qpdf"  gRbase
>
> and in the log from r-devel (on winbuilder) I get
>
> * checking sizes of PDF files under 'inst/doc' ... WARNING
>   'gs+qpdf' made some significant size reductions:
>      compacted 'gRbase-arrays.pdf' from 421Kb to 115Kb
>   consider running tools::compactPDF(gs_quality = "ebook") on these files
>
> According to "writing R extensions" things should be fine (I have gs and
> qpdf on my system):
>
> "The --compact-vignettes option will run tools::compactPDF over the PDF
> files in inst/doc (and its subdirectories) to losslessly compress them.
> This is not enabled by default (it can be selected by environment variable
> _R_BUILD_COMPACT_VIGNETTES_) and needs qpdf (http://qpdf.sourceforge.net/)
> to be available. "
>
> Can anyone please tell me what to do?
>
> Best regards
> Søren
>
> ---
>
> > sessionInfo()
> R version 3.4.4 (2018-03-15)
> Platform: x86_64-pc-linux-gnu (64-bit)
> Running under: Ubuntu 16.04.4 LTS
>
> Matrix products: default
> BLAS: /usr/lib/libblas/libblas.so.3.6.0
> LAPACK: /usr/lib/lapack/liblapack.so.3.6.0
>
> locale:
>  [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
>  [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
>  [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8
>  [7] LC_PAPER=en_US.UTF-8       LC_NAME=C
>  [9] LC_ADDRESS=C               LC_TELEPHONE=C
> [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
> other attached packages:
> [1] Rcpp_0.12.17    shtools_1.0     markdown_0.8    knitr_1.20
> [5] rmarkdown_1.10  devtools_1.13.5
>
> loaded via a namespace (and not attached):
>  [1] lattice_0.20-35         digest_0.6.15           withr_2.1.2
>
>  [4] rprojroot_1.3-2         grid_3.4.4              backports_1.1.2
>
>  [7] magrittr_1.5            evaluate_0.10.1         stringi_1.2.3
>
> [10] curl_3.2                RcppArmadillo_0.8.500.0 Matrix_1.2-14
>
> [13] tools_3.4.4             RcppEigen_0.3.3.4.0     stringr_1.3.1
>
> [16] compiler_3.4.4          memoise_1.1.0           htmltools_0.3.6
>
>
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