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Command-line pdf stuff

  • poppler-utils package:

    apt install poppler-utils

  • pdfunite to combine PDFs into one file

    pdfunite file1.pdf file2.pdf file3.pdf output.pdf

  • pdfseparate to pull out a range of pages, with one file per page

    pdfseparate -f 2 -l 10 input.pdf output%d.pdf

    Alternatively, pdftk to pull out selected set of pages (for example to delete a page):

    pdftk input.pdf cat 1-2 4-end output output.pdf

  • Use gs to reduce file size

    gs -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 \
-dPDFSETTINGS=/printer -sOutputFile=output.pdf input.pdf

    For PDFSETTINGS you can use /screen, /ebook, /printer, or /prepress.

  • To install pdftk with Ubuntu 18.04 (Bionic), needed to do the following:

#!/bin/bash

author: abu

date: July 3 2019 (ver. 1.1)

description: bash script to install pdftk on Ubuntu 18.04 for amd64 machines

##############################################################################

change to /tmp directory

cd /tmp

download packages

wget http://launchpadlibrarian.net/340410966/libgcj17_6.4.0-8ubuntu1_amd64.deb
http://launchpadlibrarian.net/337429932/libgcj-common_6.4-3ubuntu1_all.deb
https://launchpad.net/ubuntu/+source/pdftk/2.02-4build1/+build/10581759/+files/pdftk_2.02-4build1_amd64.deb
https://launchpad.net/ubuntu/+source/pdftk/2.02-4build1/+build/10581759/+files/pdftk-dbg_2.02-4build1_amd64.deb

echo -e "Packages for pdftk downloaded\n\n"

install packages

echo -e "\n\n Installing pdftk: \n\n" sudo apt-get install ./libgcj17_6.4.0-8ubuntu1_amd64.deb
./libgcj-common_6.4-3ubuntu1_all.deb
./pdftk_2.02-4build1_amd64.deb
./pdftk-dbg_2.02-4build1_amd64.deb echo -e "\n\n pdftk installed\n" echo -e " try it in shell with: > pdftk \n"

delete deb files in /tmp directory

rm ./libgcj17_6.4.0-8ubuntu1_amd64.deb rm ./libgcj-common_6.4-3ubuntu1_all.deb rm ./pdftk_2.02-4build1_amd64.deb rm ./pdftk-dbg_2.02-4build1_amd64.deb

To run this script, copy it in an editor and save it e.g. pdftk_installer. Then run it in a terminal with

```shell
chmod 755 pdftk_installer
./pdftk_installer

  • Rotate pdf 90 degrees counter-clockwise with pdftk:

    pdftk input.pdf cat 1west output output.pdf