staple_pdf {staplr}

Merge multiple PDF files into one

Description

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.

Usage

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

TRUE if the operation was succesfful. FALSE if the operation fails.

Author(s)

Priyanga Dilini Talagala and Daniel Padfield

References

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

Examples

if (requireNamespace("lattice", quietly = TRUE)) {
dir <- tempfile()
dir.create(dir)
for(i in 1:3) {
pdf(file.path(dir, paste("plot", i, ".pdf", sep = "")))
print(lattice::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)
}