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apoorv74/pdf_merge.R

Created November 3, 2017 12:41
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Merging PDF's
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pdf_merge.R
library(plotflow)
library(reports)
## make a folder to store the pdfs
folder(deleteMe)
## paste the paths to pdfs together in one string w/ spaces
plotflow:::mergePDF(
in.file=paste(file.path("deleteMe", dir("deleteMe")), collapse=" "),
file="merged.pdf"
)
## delete MWE
delete('deleteMe')
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apoorv74 commented Nov 6, 2017

To reduce PDF size - use this ghostscript utility gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -sOutputFile=mydocsmaller.pdf UNDP\ India\ -\ Technical\ Proposal.pdf

file size or image quality can be manipulated by adjusting the PDFSETTINGS parameter, eg: gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dColorImageResolution=200 \-dNOPAUSE -dQUIET -dBATCH -sOutputFile=mydocsmaller.pdf UNDP\ India\ -\ Technical\ Proposal.pdf

SO: https://stackoverflow.com/questions/10450120/optimize-pdf-files-with-ghostscript-or-other

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