pdfcrack is a command line, password recovery tool for PDF-files.
PDFCrack is a GNU/Linux (other POSIX-compatible systems should work too) tool
for recovering passwords and content from PDF-files. It is small,
command line driven without external dependencies.
The application is Open Source (GPL).
Enable snaps on Red Hat Enterprise Linux and install pdfcrack-simosx
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
The packages for RHEL 7, RHEL 8, and RHEL 9 are in each distribution’s respective Extra Packages for Enterprise Linux (EPEL) repository. The instructions for adding this repository diverge slightly between RHEL 7, RHEL 8 and RHEL 9, which is why they’re listed separately below.
The EPEL repository can be added to RHEL 9 with the following command: