qPDF Decode

Permanent decryption of a single PDF file using a password.

Main repository: https://git.disroot.org/daltux/qpdf-decode

Dependencies

• QPDF tool
  • versions tested: 11.6.3, 8.0.2
• A POSIX-compliant Shell (/bin/sh)
  • tested on Debian GNU/Linux and Ubuntu with:
    • dash 0.5.12, 0.5.8
    • posh 0.14.1, 0.13.1
    • busybox sh 1.36.1
• For the graphic user interface (qpdf-decode-gui):
  • YAD
    • tested on 0.40.0 from Debian, Xfce 4.18, GTK+ 3.24.38
    • tested on 0.38.2 from Ubuntu 18.04

Copyright, licensing and disclaimer

Copyright © 2023 Daltux

This program is Free Software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

Acknowledgements

• QPDF command-line tool used here for fast PDF decryption
• Neovim CLI text editor
• Geany IDE including a real-time Markdown preview plugin
• ShellCheck script static analysis tool
• Papirus SVG icon theme (GPLv3) providing elements mixed in qpdf-decode-gui icon
• Inkscape SVG editor
• Debian GNU/Linux operating system