smallpdf.off: Close smallpdf device

In muschellij2/smallpdf: Creates small-in-size multi-page PDFs by creating a series of PNG/JPEG/BMP that are then joined together.

Description

Closes smallpdf device and converts the files into. This is only worthwhile when the pdf has a lot of information, such as when using image.

Usage

smallpdf.off(pdfname, pdfobj = NULL, mypattern, dev,
  extra.opts = "-quality 100", outdir, clean = FALSE)

Arguments

pdfname	filename of PDF to be created
pdfobj	List with elements mypattern and dev, returned from smallpdf. If this is not NULL, overrides the mypattern and dev options.
mypattern	regular expression pattern for device files (from smallpdf)
dev	device used to open (from smallpdf)
extra.opts	Additional options sent to convert
outdir	Directory of intermediate bitmap files (defaults to tempdir())
clean	Delete temporary bitmap files or not?

Value

The command for the conversion

See Also

dev.off

Examples

## Not run: 
## not good for small plots
x = smallpdf(dev="jpeg")
dat = matrix(rnorm(1e3*4), ncol=4)
plot(dat[,1], dat[,2])
plot(dat[,3], dat[,4])
fname = file.path(tempdir(), "smallpdf.pdf")
smallpdf.off(pdfname = fname, mypattern=x$mypattern, dev=x$dev)
print(file.info(fname)$size)
# view.pdf(fname)
fname2 = file.path(tempdir(), "normalpdf.pdf")
pdf(fname2)
plot(dat[,1], dat[,2])
plot(dat[,3], dat[,4])
dev.off()
file.info(fname2)$size
print(file.info(fname2)$size / file.info(fname)$size)

## better for large plots
x = smallpdf(dev="jpeg")
dat = matrix(rnorm(1e6*4), ncol=4)
plot(dat[,1], dat[,2])
plot(dat[,3], dat[,4])
fname = file.path(tempdir(), "smallpdf.pdf")
smallpdf.off(pdfname = fname, mypattern=x$mypattern, dev=x$dev)
file.info(fname)$size
# [1] 3339399
# view.pdf(fname)
fname2 = file.path(tempdir(), "normalpdf.pdf")
pdf(fname2)
plot(dat[,1], dat[,2])
plot(dat[,3], dat[,4])
dev.off()
file.info(fname2)$size
# [1] 13648866
file.info(fname2)$size / file.info(fname)$size
# [1] 4.087222

## End(Not run)

muschellij2/smallpdf documentation built on May 23, 2019, 9:55 a.m.