qpdf

This post is part of a series of posts categorized as “Wiki” that contain basic how-to information. The intent is to create a reference repository for myself, but I’m not selfish so if anyone else can also benefit from it then I’m happy to share the knowledge!

  • OS: Linux/Windows
  • Description: Convert encrypted, password protected PDF or PDF streams to unencrypted
Helpful Options:
 --password=password   specify password
 --decrypt             remove decryption
 --is-encrypted        check if PDF is encrypted
 --requires-password   check if PDF is password protected