Merge multiple PDF files into one — staple

If the toolkit Pdftk is available in the system, it will be called to merge the PDF files.

See the reference for detailed usage of pdftk.

staple_pdf(
  input_directory = NULL,
  input_files = NULL,
  output_filepath = NULL,
  overwrite = TRUE
)

Arguments

input_directory	the path of the input PDF files. The default is set to NULL. If NULL, it prompt the user to select the folder interactively.
input_files	a vector of input PDF files. The default is set to NULL. If NULL and `input_directory` is also NULL, the user is propted to select a folder interactively.
output_filepath	the path of the output PDF file. The default is set to NULL. IF NULL, it prompt the user to select the folder interactively.
overwrite	If a file exists in `output_filepath`, should it be overwritten.

Value

this function returns a combined PDF document

References

https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/

Author

Priyanga Dilini Talagala and Daniel Padfield

Examples

if (FALSE) {
staple_pdf()
}

if (FALSE) {
dir <- tempdir()
require(lattice)
for(i in 1:3) {
pdf(file.path(dir, paste("plot", i, ".pdf", sep = "")))
print(xyplot(iris[,1] ~ iris[,i], data = iris))
dev.off()
}
output_file <- file.path(dir, paste('Full_pdf.pdf',  sep = ""))
staple_pdf(input_directory = dir, output_filepath = output_file)
}