I built this tool a while back when I accidentally deleted thousands of my PDFs. I found the existing ext4magick and similar solutions to be cumbersome and complicated to use, and wanted something similar that just did PDFs.

As a bonus, because it only handles PDF documents, the pattern recognision is super simple, allowing this program to scan through a disk at high speed, like the maximum read speed for your disk.

Hope people find it useful.

Mirror: https://github.com/seanhly/recover-pdfs