How To Install pdfcrack on Ubuntu 22.04

In this tutorial we learn how to install pdfcrack on Ubuntu 22.04. pdfcrack is PDF files password cracker

Introduction

In this tutorial we learn how to install pdfcrack on Ubuntu 22.04.

What is pdfcrack

pdfcrack is:

PDFCrack is a simple tool for recovering passwords from pdf-documents.

It should be able to handle all pdfs that uses the standard security handler but the pdf-parsing routines are a bit of a quick hack so you might stumble across some pdfs where the parser needs to be fixed to handle.

The main PDFCrack features are:

  • Supports the standard security handler (revision 2, 3 and 4) on all known PDF-versions.
  • Supports cracking both owner and userpasswords.
  • Both wordlists and bruteforcing the password are supported.
  • Simple permutations (currently only trying first character as Upper Case).
  • Save and load a running job.
  • Simple benchmarking.
  • Optimised search for owner-password when user-password is known.

This program can be used in forensics investigations or similar activities, to legal password crack.

There are three methods to install pdfcrack on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install pdfcrack Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install pdfcrack using apt-get by running the following command:

sudo apt-get -y install pdfcrack

Install pdfcrack Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install pdfcrack using apt by running the following command:

sudo apt -y install pdfcrack

Install pdfcrack Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install pdfcrack using aptitude by running the following command:

sudo aptitude -y install pdfcrack

How To Uninstall pdfcrack on Ubuntu 22.04

To uninstall only the pdfcrack package we can use the following command:

sudo apt-get remove pdfcrack

Uninstall pdfcrack And Its Dependencies

To uninstall pdfcrack and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:

sudo apt-get -y autoremove pdfcrack

Remove pdfcrack Configurations and Data

To remove pdfcrack configuration and data from Ubuntu 22.04 we can use the following command:

sudo apt-get -y purge pdfcrack

Remove pdfcrack configuration, data, and all of its dependencies

We can use the following command to remove pdfcrack configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge pdfcrack

References

Summary

In this tutorial we learn how to install pdfcrack package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.