| Type: | Package |
| Title: | Split, Combine and Compress PDF Files |
| Version: | 1.4.1 |
| Description: | Content-preserving transformations transformations of PDF files such as split, combine, and compress. This package interfaces directly to the 'qpdf' C++ library https://qpdf.sourceforge.io/ and does not require any command line utilities. Note that 'qpdf' does not read actual content from PDF files: to extract text and data you need the 'pdftools' package. |
| License: | Apache License 2.0 |
| URL: | https://docs.ropensci.org/qpdf/ https://ropensci.r-universe.dev/qpdf |
| BugReports: | https://github.com/ropensci/qpdf/issues |
| Encoding: | UTF-8 |
| Imports: | Rcpp, askpass, curl |
| LinkingTo: | Rcpp |
| RoxygenNote: | 7.2.1 |
| Suggests: | testthat |
| SystemRequirements: | libjpeg |
| NeedsCompilation: | yes |
| Packaged: | 2025-06-30 11:12:14 UTC; jeroen |
| Author: | Jeroen Ooms  [aut,
cre],
Ben Raymond [ctb],
Jay Berkenbilt [cph] (Author of libqpdf) |
| Maintainer: | Jeroen Ooms <jeroenooms@gmail.com> |
| Repository: | CRAN |
| Date/Publication: | 2025-07-02 09:40:02 UTC |
Split, Combine and Compress PDF Files
Description
Content-preserving transformations transformations of PDF files. Note qpdf does not read actual content from PDF files: to extract text and data you need the pdftools package.
Usage
pdf_split(input, output = NULL, password = "")
pdf_length(input, password = "")
pdf_subset(input, pages = 1, output = NULL, password = "")
pdf_combine(input, output = NULL, password = "")
pdf_compress(input, output = NULL, linearize = FALSE, password = "")
pdf_overlay_stamp(input, stamp, output = NULL, password = "")
pdf_rotate_pages(
input,
pages,
angle = 90,
relative = FALSE,
output = NULL,
password = ""
)
Arguments
input |
path or url to the input pdf file |
output |
base path of the output file(s) |
password |
string with password to open pdf file |
pages |
a vector with page numbers to rotate |
linearize |
enable pdf linearization (streamable pdf) |
stamp |
pdf file of which the first page is overlayed into each page of input |
angle |
rotation angle in degrees (positive = clockwise) |
relative |
if |
Details
Currently the package provides the following wrappers:
-
pdf_length: show the number of pages in a pdf
-
pdf_split: split a single pdf into separate files, one for each page
-
pdf_subset: create a new pdf with a subset of the input pages
-
pdf_combine: join several pdf files into one
-
pdf_compress: compress or linearize a pdf file
-
pdf_rotate_pages: rotate selected pages
These functions do not modify the input file: they create new output file(s)
and return the path(s) to these newly created files.
Examples
# extract some pages
pdf_file <- file.path(tempdir(), "output.pdf")
pdf_subset('https://cran.r-project.org/doc/manuals/r-release/R-intro.pdf',
pages = 1:3, output = pdf_file)
pdf_length(pdf_file)
unlink(pdf_file)